Vincenzo Spagnolo Home Page

Vincenzo Spagnolo

Full Professor – Vice Rector

e-mail: vincenzoluigi.spagnolo@poliba.it

tel: +39 080 5442373

DIDATTICA INGEGNERIA

Spagnolo Vincenzo was born in Manfredonia (FG), Italy in 1967. He received the degree (summa cum laude) and the PhD, both in physics, from University of Bari. He works as Full Professor of Applied Physics at the Technical University of Bari. In 2019, he become Vice-Rector of the Technical University of Bari, deputy to Technology Transfer. The main scientific activity of Vincenzo Spagnolo has been related to electron-phonon interaction in low dimensional system, micro-probe optical characterization of semiconductor laser devices, thermal modeling of optoelectronic devices and more recently on the development of optoacoustic gas sensors based on quartz-enhanced photoacoustic spectroscopy. He has been visiting researcher at Rice University (Texas) in 2009 and 2010 and visiting professor in 2017. Since 2018, he is “hundred talents” visiting professor at Shanxi University in Taiyuan (China). Since 2024 he is honorary professor at Jinan University in Guangzhou(China).

In 2017, he become the director of the joint-research lab PolySense, created by THORLABS GmbH and Technical University of Bari, devoted to the development and implementation of novel gas sensing techniques and the realization of highly sensitive QEPAS trace-gas sensors. Since 2023, Prof. Spagnolo is co-director of the International Joint Laboratory on Laser Carbon Monitoring at Shanxi University. Prof. Spagnolo co-founded in 2021 “PolySenSe Innovations”, a spinoff company devoted to commercialization of innovative gas sensors and consulting for applications in environmental, petrochemical, and biomedical fields.

His research activity is documented by more than 300 Scopus publications and 6 filed patents (more than 7500 citations, h-index 53). He has given more than 60 invited, keynote and plenary presentations at international conferences and workshops. Prof. Spagnolo is responsible for the Technical University of Bari or University of Bari research unit in several National and European Projects. He serves in EU-COST, Deutsche Forschungsgemeinschaft (DFG), Austrian Science Fund, Dutch Research Council (NWO), Italian minister of Research and Italian Minister of Defence as reviewer of photonics and sensing related projects. Prof. Spagnolo is program committee member of several SPIE and OSA conferences. He is editor of Sensors (MPDI), Applied Science (MPDI) and guest Editor of Photoacoustics (Elsevier) and Frontiers in Environmental Chemistry.

Prof. Spagnolo is Fellow member of the SPIE and senior member of the OSA. He has been granted with the “Terra del Sole” prize and the “Re Manfredi” award in 2018, and the “Argos Hyppium” price in 2019. He recieved the “Session Chair award” from PhotonIcs and Electromagnetics Research Symposium (PIERS) society in 2023 and 2024 (https://piers.org/awards/soa.html).

Prof. Spagnolo since 2019 has been ranked among Top 2% Scientists in the world by Stanford University, USA (https://elsevier.digitalcommonsdata.com/datasets/btchxktzyw/6). Since 2023, he has been listed in the world top scientists list for Engineering and Technology discipline https://research.com/u/vincenzo-spagnolo. In 2024 ha has been listed in the World Scientists Rankings 2024 by AD Scientific Index (Vincenzo Spagnolo – AD Scientific Index 2024).

Scopus Elsevier listed Prof. Spagnolo as the most prolific authors in the world in the period 2014-2023 in the topics: Photoacoustic Spectroscopy; Gas Detectors; Methane

Publications:

Book chapters

A. Elia, P.M. Lugarà, C. Di Franco, V. Spagnolo, “Quantum Cascade Laser Technology for the Ultrasensitive Detection of Low-Level Nitric Oxide” in “ Nitric Oxide”, Methods in Molecular Biology, vol. 704 Nitric Oxide – Part 1, Pages 115-133 Editors: H.O. McCarthy, J.A. Coulter, Springer Science ( 2011), doi: 10.1007/978-1-61737-964-2, ISBN: 978-1-61737-963-5
P. Patimisco, S. Borri, A. Sampaolo, M.S. Vitiello, G. Scamarcio, V. Spagnolo, “Quartz Enhanced Photoacoustic Sensors for Trace Gas Detection in the IR and THz Spectral Range”, THz and Security Applications, NATO Science for Peace and Security Series B: Physics and Biophysics,Chapter 8, Pages 139-151 Editors: C. Corsi and F. Sizov, Springer Science+Business Media Dordrecht (2014). ISBN 978-94-017-8828-1
V. Spagnolo, P. Patimisco, F.K. Tittel, “Quartz-enhanced photoacoustic spectroscopy for gas sensing applications”, in Mid-infrared Optoelectronics Materials, Devices, and Applications 1st Edition– Chapter 15, Pages 597-659. Editors: Eric Tournié, Laurent Cerutti, Elsevier -Woodhead Publishing Series in Electronic and Optical Materials, Paperback ISBN: 9780081027097 – eBook ISBN: 9780081027387
M. Giglio, A. Zifarelli, P. Patimisco, A. Sampaolo, G. Menduni, A. Elefante, R. Blanchard, C. Pfluegl, M. F. Witinski, D. Vakhshoori, F. K. Tittel, and Vincenzo Spagnolo, “Broadband gas QEPAS detection exploiting a monolithic DFB-QCL array”, Terahertz (THz), Mid Infrared (MIR) and Near Infrared (NIR) Technologies for Protection of Critical Infrastructures Against Explosives and CBRN, NATO Science for Peace and Security Series B: Physics and Biophysics, Chapter 5, pages 61-70, Editors: Mauro Pereira and Apostolos Apostolakis, Springer Nature (2021), DOI:10.1007/978-94-024-2082-1, ISBN 978-94-024-2081-4.
P. Patimisco, V. Spagnolo, “Quartz‐Enhanced Photoacoustic Spectroscopy for Trace Gas Sensing”, Encyclopedia of Analytical Chemistry: Applications, Theory and Instrumentation, Wiley Online Library, 23 March 2021, doi: 10.1002/9780470027318.a9760
M. Giglio, A. Elefante, P. Patimisco, A. Sampaolo, V. Spagnolo, Quartz-Enhanced Photoacoustic Sensors for Environmental Monitoring. In: Narayan, R. (Ed.), Encyclopedia of Sensors and Biosensors, vol. 4. Elsevier, pp. 789–799 (2023). https://dx.doi.org/10.1016/B978-0-12-822548-6.00126-6. ISBN:9780128225486

Patents

Italian Patent n° 01314519, 2000. Title: Sensore ottico per il monitoraggio dei processi di saldatura. Property: CNR-INFM. Inventors: A. Ancona, V. Spagnolo, P.M. Lugarà.
Italian Patent n° TO2007A000806, 2007. Title: “Struttura di laser a cascata quantica con migliorate proprietà termiche e procedimento per la sua fabbricazione”. Property: CNR. Inventors: C. Di Franco, A. Lops, G. Scamarcio, V. Spagnolo, M.S. Vitiello.
Chinese Patent n° 202010087714.6, 2020. Title “A method and a device for improving the sensitivity of gas concentration detection of quartz enhanced photoacoustic spectrum”. Inventors: H. Wu, L. Dong, Z. Shang, S. Li, V. Spagnolo, A. Sampaolo, P. Patimisco.
Chinese Patent n° 202110696021.1, 2021. Title: “Radial cavity quartz-enhanced photoacoustic spectrometer and its gas detection device “. Inventors: H. Zheng, H. Lyu, H. Lin, W. Zhu, J. Yu, Z. Li, P. Patimisco, A. Sampaolo, M. Giglio, V. Spagnolo
Chinese Patent n° 112834430B, 2022. Title “A device and method for gas detection based on acoustic pulse excitation of photoacoustic cell”. Inventors: H. Wu, L. Dong, T. Wei, W. Yinzho, V.Spagnolo, A. Sampaolo, P. Patimisco, M. Giglio.
Italian Patent n° 102024000003016, 13/02/2024. Title “Method to enhance the optical absorption of quartz crystals from near-to mid-infrared spectral range”. Inventors: Raffaele De Palo, Pietro Patimisco, Annalisa Volpe, Angelo Sampaolo, Antonio Ancona, Vincenzo Spagnolo

Publications on International Journals

C. Feng, B. Li, Y. Jing, J. Wang, P. Patimisco, V. Spagnolo, A. Sampaolo, L. Dong, H. Wu, “Enrichment-enhanced photoacoustic spectroscopy based on vertical graphene”, Sensors and Actuactors B Chem.417, 136204 (2024).
K. Kinjalk, F. Paciolla, B. Sun, A. Zifarelli, G. Menduni, M. Giglio, H. Wu, L. Dong, D. Ayache, D. Pinto, A. Vicet, A. Baranov, P. Patimisco, A. Sampaolo and V. Spagnolo, “Highly selective and sensitive detection of volatile organic compounds using long wavelength InAs-based quantum cascade lasers through quartz-enhanced photoacoustic spectroscopy”, Appl. Phts. Rev. 11, 021427 (2024).
A. Zifarelli, G. Negro, L. A. Mongelli, A. Sampaolo, E- Ranieri, L. Dong, H. Wu, P. Patimisco, G. Gonnella, V. Spagnolo, “Effect of gas turbulence in quartz-enhanced photoacoustic spectroscopy: A comprehensive flow field analysis”, Photoacoustics 38, 100625 (2024).
S. Qiao, Y. He, H. Sun, P. Patimisco, A. Sampaolo, V. Spagnolo and Y.Ma, “Ultra-highly sensitive dual gases detection based on photoacoustic spectroscopy by exploiting a long-wave, high-power, wide-tunable, singlelongitudinal- mode solid-state laser”, Light: Science & Applications 13, 100 (2024).
A. Zifarelli, R. De Palo, S. Venck, F. Joulain, S. Cozic, R. Weih, A. Sampaolo, P. Patimisco, V. Spagnolo, “All-fiber-coupled mid-infrared quartz-enhanced photoacoustic sensors”, Optics and Laser Technology 176, 110926 (2024).
J. Wang, H. Wu, A. Sampaolo, P. Patimisco, V. Spagnolo, S. Jia, L. Dong, “Quartz-enhanced multiheterodyne resonant photoacoustic spectroscopy”, Light: Science & Applications 13, 77 (2024).
C. F. Twomey, G. Biagi, A. A. Ruth, M. Giglio, V. Spagnolo, L. O’Faolain, A. J. Walsh, “Evanescent wave quartz-enhanced photoacoustic spectroscopy employing a side-polished fiber for methane sensing”, Photoacoustics 36, 100586 (2024).
C. Feng, X. Shen, B. Li, X. Liu, Y. Jing, Q. Huang, P. Patimisco, V. Spagnolo, L. Dong, H. Wu, “Carbon monoxide impurities in hydrogen detected with resonant photoacoustic cell using a mid-IR laser source”, Photoacoustics 36, 100585 (2024).
E. Ranieri, G. D’Onghia, L. Lopopolo, P. Gikas, F. Ranieri, E. Gika, V. Spagnolo, J.A. Herrera, A.C. Ranieri, “Influence of climate change on wastewater treatment plants performance and energy costs in Apulia, south Italy”, Chemosphere 350, 141087 (2024).
C. Liu, G. Wang, C. Zhang, P. Patimisco, R. Cui, C. Feng, A. Sampaolo, V. Spagnolo, L. Dong, H. Wu, “End-to-end methane gas detection algorithm based on transformer and multi-layer perceptron”, Optics Express 32, 987-1002 (2024).
R. Cui, H. Wu, F.K. Tittel, V. Spagnolo, W. Chen, L. Dong, “Folded-optics-based quartz-enhanced photoacoustic and photothermal hybrid spectroscopy”, Photoacoustics 35, 100580 (2024).
A.F.P. Cantatore, G. Menduni, A. Zifarelli, P. Patimisco, M. Gonzalez, H.R. Seren, V. Spagnolo, A. Sampaolo, “Lithium Niobate – Enhanced Photoacoustic Spectroscopy”, Photoacoustics 35, 100577 (2024).
R. De Palo, A. E. Mazzarone, A. Volpe, C. Gaudiuso, F. P. Mezzapesa, V. Spagnolo, A. Ancona, “Investigation of Laser-Induced Surface Structures (LIPSS) on quartz and evaluation of their influence on material wettability”, Optics & Laser Technology 169, 110097 (2024).
P. Patimisco, N. Ardito, E. De Toma, D. Burghart, V. Tigaev, M.A. Belkin and V. Spagnolo, “Quartz-Enhanced Photoacoustic Sensor Based on a Multi-Laser Source for In-Sequence Detection of NO2, SO2, and NH3”, Sensors 23, 9005 (2023).
P. Bojęś, P. Jaworski, P. Pokryszka, W. Belardi, V. Spagnolo, K. Krzempek, “Dual-band light-induced thermoelastic spectroscopy utilizing an antiresonant hollow-core fiber-based gas absorption cell”, Appl. Phys. B 129, 177 (2023).
A. Zifarelli, A.F.P. Cantatore, A. Sampaolo, M. Mueller, T. Rueck, C. Hoelzl, H. Rossmadl, P. Patimisco, V. Spagnolo, “Multivariate analysis and digital twin modelling: Alternative approaches to evaluate molecular relaxation in photoacoustic spectroscopy”, Photoacoustics 33, 100564 (2023).
S. Li, Y. Yuan, Z. Shang., X. Yin, A. Sampaolo,P. Patimisco, V. Spagnolo, L. Dong, H. Wu, “Ppb-level NH3 photoacoustic sensor combining a hammer-shaped tuning fork and a 9.55 μm quantum cascade laser”, Photoacoustics 33 100557, (2023).
B. Sun, P. Patimisco, A. Sampaolo, A. Zifarelli, V. Spagnolo, H. Wu, L. Dong, “Light-induced thermoelastic sensor for ppb-level H2S detection in a SF6 gas matrices exploiting a mini-multi-pass cell and quartz tuning fork photodetector”, Photoacoustics 33, 100553 (2023).
M. Giglio, V. Spagnolo, G. Menduni, L. Dong, W. Chen, “Editorial: Recent advances in gaseous hydrocarbon sensing”, Frontiers in Chemistry 11 (2023).
M. Olivieri, M. Giglio, S. Dello Russo, G. Menduni, A. Zifarelli, P. Patimisco, A. Sampaolo, H. Wu, L. Dong, V. Spagnolo, “Assessment of vibrational-translational relaxation dynamics of in a wet-nitrogen matrix through QEPAS”, Photoacoustics 31, 100518 (2023).
L. Biao, G. Menduni, M. Giglio, P. Patimisco, A. Sampaolo, A. Zifarelli, H. Wu, T. Wei, V. Spagnolo, L. Dong, “Quartz-enhanced photoacoustic spectroscopy (QEPAS) and Beat Frequency-QEPAS techniques for air pollutants detection: A comparison in terms of sensitivity and acquisition time”, Photoacoustics 31, 100479 (2023).
Z. Shang, H. Wu, S. Li, G. Wang, A. Sampaolo, P. Patimisco, V. Spagnolo, L. Dong “Ppb-level mid-IR quartz-enhanced photoacoustic sensor for sarin simulant detection using a T-shaped tuning fork”, Photoacoustics 133937 (2023).
V. Spagnolo, P. Patimisco, Y. Ma, L. Dong, F.K. Tittel, “Gas Spectroscopy – Editorial Special Issue”, Photoacoustics, 100502 (2023).
R. De Palo, A. Elefante, G. Biagi, F. Paciolla, R. Weih, V. Villada, A. Zifarelli, M. Giglio, A. Sampaolo, V. Spagnolo, and P. Patimisco, “Quartz-Enhanced Photoacoustic Sensors for Detection of Eight Air Pollutants, Advanced Photonics Research, 2200353 (2023).
E. Ranieri, G. D’Onghia, L. Lopopolo, P. Gikas, F. Ranieri, E. Gika, V. Spagnolo, A. C. Ranieri, “Evaluation of greenhouse gas emissions from aerobic and anaerobic wastewater treatment plants in Southeast of Italy”, J. Environmental Management 337, 117767 (2023).
D. Ayache, R. Rousseau, E. Kniazeva, J. Charensol, T. Seoudi, M. Bahriz, F. Gouzi, V. Spagnolo and A. Vicet, “Commercial and Custom Quartz Tuning Forks for Quartz Enhanced Photoacoustic Spectroscopy: Stability under Humidity Variation”, Sensors 23, 3135 (2023).
E. Ranieri, G. D’Onghia, F. Ranieri, J. A. M. Herrera, L. Lopopolo, V. Spagnolo 4 and A.C. Ranieri, “Copper Phytoextraction Using Phyllostachys pubescens”, Sustainability 15, 5238 (2023).
M. Di Gioia, L. Lombardi, C. Marzocca, G. Matarrese, G. Menduni. P. Patimisco and V. Spagnolo, “Signal-to-Noise Ratio Analysis for the Voltage-Mode Read-Out of Quartz Tuning Forks in QEPAS Applications”, Micromachines 14, 619 (2023).
Q. Wu, H. Lv, J. Li, Z. Yang, R. Kan, M. Giglio, W. Zhu, Y. Zhong, A. Sampaolo, P. Patimisco, V. Spagnolo, J. Yu, H. Zheng, “Side-excitation light-induced thermoelastic spectroscopy”, Optics Letters 48, 562-565 (2023).
A. Zifarelli, A. Sampaolo, P. Patimisco, M. Giglio, M. Gonzalez, H. Wu, L. Dong, V. Spagnolo, “Methane and ethane detection from natural gas level down to trace concentrations using a compact mid-IR LITES sensor based on univariate calibration”, Photoacoustics 29, 100448 (2023).
M. Olivieri, G. Menduni, M. Giglio, A. Sampaolo, P. Patimisco, H. Wu, L. Dong, V. Spagnolo, “Characterization of H2S QEPAS detection in methane-based gas leaks dispersed into environment”, Photoacoustics 29, 100438 (2023).
H. Zhang, Z. Wang, Q. Wang, S. Borri, I. Galli, A. Sampaolo, P. Patimisco, V. Spagnolo, P. De Natale, W. Ren, “Parts-per-billion-level detection of hydrogen sulfide based on doubly resonant photoacoustic spectroscopy with line-locking”, Photoacoustics 29, 100436 (2023).
G. Menduni, A. Zifarelli, E. Kniazeva, S. Dello Russo, A.C. Ranieri, E. Ranieri, P. Patimisco, A. Sampaolo, M. Giglio, F. Manassero, E. Dinuccio, G. Provolo, H. Wu, L. Dong, V. Spagnolo, “Measurement of methane, nitrous oxide and ammonia in atmosphere with a compact quartz-enhanced photoacoustic sensor”, Sens. Actuat. B Chem. 375, 132953 (2023).
R. De Palo, A. Volpe, C. Gaudiuso, P. Patimisco, V. Spagnolo, A. Ancona, ” Threshold fluence and incubation during multi-pulse ultrafast laser ablation of quartz”, Optics Express 30, 44908 (2022).
C. Feng, M. Giglio, B. Li, A. Sampaolo, P. Patimisco, V. Spagnolo, L. Dong, H. Wu, “Detection of hydrogen sulphide in sewer using an erbium-doped fiber amplified diode laser and a gold-plated photoacoustic cell”, Molecules 27, 6505 (2022).
A. Zifarelli, R. De Palo, P. Patimisco, M. Giglio, A. Sampaolo, S. Blaser, J. Butet, O. Landry, A. Müller, V. Spagnolo, “Multi-gas quartz-enhanced photoacoustic sensor for environmental monitoring exploiting a Vernier effect-based quantum cascade laser”, Photoacoustics 28, 100401 (2022).
Q. Wu, H. Lv, L. Lin, H. Wu, M. Giglio, W. Zhu, Y. Zhong, A. Sampaolo, P. Patimisco, L. Dong, V. Spagnolo, J. Yu, and H. Zheng, “Clamp-type quartz tuning fork enhanced photoacoustic spectroscopy”, Oprics Letters 47, 4556-4559 (2022).
Z. Wang, Q. Wang, H. Zhang, S. Borri, I. Galli, A. Sampaolo, P. Patimisco, V. Spagnolo, P. De Natale, W. Ren, ” Doubly resonant sub-ppt photoacoustic gas detection with eight decades dynamic range”, Phtoacoustics 27, 100387 (2022).
S. Qiao, A. Sampaolo, P. Patimisco, V. Spagnolo, Y. Ma, “Ultra-highly sensitive HCl-LITES sensor based on a low-frequency quartz tuning fork and a fiber-coupled multi-pass cell”, Photoacoustics 27, 100381 (2022).
A. Zifarelli, G. Menduni, M. Giglio, A. Elefante, A. Sukhinets, A. Sampaolo, P. Patimisco, S. Fangyuan, W. Chongwu, Q. J. Wang and V. Spagnolo, “Compact and Versatile QEPAS-Based Sensor Box for Simultaneous Detection of Methane and Infrared Absorber Gas Molecules in Ambient Air”, Frontiers in Envornmental Chemistry, 926233 (2022).
H. Lin, Y. Liu, L. Lin, W. Shu, X. Zou, Y. Yongchun, M. Giglio, A. Sampaolo, P. Patimisco, F.K. Tittel, J. Yu, V. Spagnolo, H. Zheng, “Application of standard and custom quartz tuning forks for quartz-enhanced photoacoustic spectroscopy gas sensing”, Applied Spectroscopy Review 57, (2022) .doi:10.1080/05704928.2022.2070917
Z. Shang, S. Li, B. Li, H. Wu, A. Sampaolo, P. Patimisco, V. Spagnolo, L. Dong, “Quartz-enhanced photoacoustic NH3 sensor exploiting a
large-prong-spacing quartz tuning fork and an optical fiber amplifier for biomedical applications”, Photoacoustics 26, 100363 (2022).
G. Menduni, A. Zifarelli, A. Sampaolo, P. Patimisco, M. Giglio, N. Amoroso, H. Wu, L. Dong, R. Bellotti, V. Spagnolo, “High-concentration methane and ethane QEPAS detection employing partial least squares regression to filter out energy relaxation dependence on gas matrix composition”, Photoacoustics 26, 100349 (2022).
J. Hayden, M. Giglio, A. Sampaolo, V. Spagnolo, B. Lendl, “Mid-infrared intracavity quartz-enhanced photoacoustic spectroscopy with pptv – Level sensitivity using a T-shaped custom tuning fork”, Photoacoustics 25, 100330 (2022).
Y. Ma, Y. Hu, S. Qiao, Z. Lang, X. Liu, Y. He, V. Spagnolo, “Quartz tuning forks resonance frequency matching for laser spectroscopy sensing”, Photoacoustics 25, 100329 (2022).
S. Li, J. Lu, Z. Shang, X. Zeng, Y. Yuan, H. Wu, Y. Pan, A. Sampaolo, P. Patimisco, V. Spagnolo, L. Dong, “Compact quartz-enhanced photoacoustic sensor for ppb-level ambient NO2 detection by use of a high-power laser diode and a grooved tuning fork”, Photoacoustics 25, 100325 (2022).
H. Lin, H. Zheng, B.A.Z. Montano, H. Wu, M. Giglio, A. Sampaolo, P. Patimisco, W. Zhu, Y. Zhong, L. Dong, R. Kan, J. Yu, V. Spagnolo, “Ppb-level gas detection using on-beam quartz-enhanced photoacoustic spectroscopy based on a 28 kHz tuning fork”, Photoacoustics 25, 100321 (2022).
F. Sgobba, A. Sampaolo, P. Patimisco, M. Giglio, G. Menduni, A.C. Ranieri, C. Hoelzl, H. Rossmadl, C. Brehm, V. Mackowiak, D. Assante, E. Ranieri, Vincenzo Spagnolo “Compact and portable quartz-enhanced photoacoustic spectroscopy sensor for carbon monoxide environmental monitoring in urban areas”, Photoacoustics 25, 100318 (2022).
E. Ranieri, G. D’Onghia, F. Ranieri, A. Petrella, V. Spagnolo, A. C. Ranieri, “Phytoextraction of Cr(VI)-Contaminated Soil by Phyllostachys pubescens: A Case Study”, Toxics 9, 312 (2021).
T. Wei, A. Zifarelli, S. Dello Russo, H. Wu, G. Menduni, P. Patimisco, A. Sampaolo, V. Spagnolo, L. Dong, “High and flat spectral responsivity of quartz tuning fork used as infrared photodetector in tunable diode laser spectroscopy”, Appl. Phys. Rev. 8, 041409 (2021).
A. Sampaolo, P. Patimisco, M. Giglio, A. Zifarelli, H. Wu, L. Dong, V. Spagnolo, “Quartz-enhanced photoacoustic spectroscopy for multi-gas detection: A review”, Anal. Chim. Acta 1202, 338894 (2021).
M. Olivieri, A. Zifarelli, G. Menduni, M. Di Gioia, C. Marzocca, V.M.N. Passaro, A. Sampaolo, M. Giglio, V. Spagnolo, P. Patimisco, “Influence of Air Pressure on the Resonance Properties of a T-Shaped Quartz Tuning Fork Coupled with Resonator Tubes”; Appl. Science 11, 7974 (2021).
S. Qiao, Y. Ma, Y. He, P. Patimisco, A. Sampaolo, and V. Spagnolo, “Ppt level carbon monoxide detection based on light-induced thermoelastic spectroscopy exploring custom quartz tuning forks and a mid-infrared QCL”, Optics Express 29, 25100-25108 (2021).
S. Qiao, Y. Ma, P. Patimisco, A. Sampaolo, Y. He, Z. Lang, F.K. Tittel, V. Spagnolo, “Multi-pass quartz-enhanced photoacoustic spectroscopy-based trace gas sensing”, Optics Letters 46, 977-980 (2021).
D. Pinto, H. Moser, J.P. Waclawek, S. Dello Russo, P. Patimisco, V. Spagnolo, B. Lendl, “Parts-per-billion detection of carbon monoxide: A comparison between quartz-enhanced photoacoustic and photothermal spectroscopy”, Photocoustics 22, 100224 (2021).
M. De Carlo , G. Menduni, A. Sampaolo , F. De Leonardis , V. Spagnolo, V.M.N. Passaro. “Modeling and Design of a Semi-Integrated QEPAS Sensor”, J. Light. Technol. 39, 646-653 (2021).
A. Sampaolo, C. Yu, T. Wei, A. Zifarelli, M. Giglio, P. Patimisco, Huan Zhu, Haiqing Zhu, L. He, H. Wu, L. Dong, G. Xu, V. Spagnolo, “H2S quartz-enhanced photoacoustic spectroscopy sensor employing a liquid-nitrogen-cooled THz quantum cascade laser operating in pulsed mode”, Photoacoustics 21, 100219 (2021).
S. Dello Russo, A. Sampaolo, P. Patimisco, G. Menduni, M. Giglio, C. Hoelzl, V.M.N. Passaro, H. Wu, L. Dong, V. Spagnolo, “Quartz-enhanced photoacoustic spectroscopy exploiting low-frequency tuning forks as a tool to measure the vibrational relaxation rate in gas species”, Photoacoustics 21, 100227 (2021).
G. Menduni , F. Sgobba, S, Dello Russo, A.C. Ranieri, A. Sampaolo, P. Patimisco, M. Giglio, V.M.N. Passaro, S. Csutak, D. Assante, E. Ranieri, E. Geoffrion and V. Spagnolo, “Fiber-Coupled Quartz-Enhanced Photoacoustic Spectroscopy System for Methane and Ethane
Monitoring in the Near-Infrared Spectral Range”, Molecules 25, 5607 (2020).
B. Sun, A. Zifarelli, H. Wu, S. Dello Russo, S. Li, P. Patimisco, L. Dong and V. Spagnolo, “Mid-infrared quartz-enhanced photoacoustic sensor for ppb-level CO detection in SF6 gas matrix exploiting a T-grooved quartz tuning fork”, Anal. Chem. 92, 13922-13929 (2020).
A. Zifarelli, M. Giglio, G. Menduni, A. Sampaolo, P. Patimisco, V.M.N. Passaro, H. Wu, L. Dong, and V. Spagnolo, “Partial Least-Squares Regression as a Tool to Retrieve Gas Concentrations in Mixtures Detected Using Quartz-Enhanced Photoacoustic Spectroscopy”, Anal. Chem. 92, 11035−11043 (2020).
E. Ranieri, A. Tursi, S. Giuliano, V. Spagnolo, A.C. Ranieri, A. Petrella, “Phytoextraction from Chromium-Contaminated Soil Using Moso Bamboo in Mediterranean Conditions”, Water Air Soil. Pollut. 231, 408 (2020).
H. Zheng, Y. Liu, H. Lin, R. Kan, P. Patimisco, A. Sampaolo, M. Giglio, W. Zhu, J. YU, F.K. Tittel, V. Spagnolo, Z. Chen, “Sub-ppb-level CH4 detection by exploiting a low-noise differential photoacoustic resonator with a room-temperature interband cascade laser”, Optics Express 28, 19446-19456 (2020).
S. Dello Russo, A. Zifarelli, P. Patimisco, A. Sampaolo, T. Wei, H. Wu, L. Dong, V. Spagnolo, “Light-induced thermo-elastic effect in quartz tuning forks exploited as a photodetector in gas absorption spectroscopy”, Optics Express 28, 19074-19084 (2020).
A. Sampaolo, G. Menduni, P. Patimisco, M. Giglio, V.M.N. Passaro, L. Dong, H. Wu, F.K. Tittel, V. Spagnolo, “Quartz-enhanced photoacoustic spectroscopy for hydrocarbon trace gas detection and petroleum exploration”, Fuel 227, 118118 (2020).
A. Elefante, G. Menduni, H. Rossmadl, V. Mackowiak, M. Giglio, A. Sampaolo, P. Patimisco, V.M.N. Passaro, V, Spagnolo, “Environmental Monitoring of Methane with Quartz-Enhanced Photoacoustic Spectroscopy Exploiting an Electronic Hygrometer to Compensate the H2O Influence on the Sensor Signal”, Sensors 20, 2935 (2020).
G. Menduni, A. Sampaolo, P. Patimisco, M. Giglio, S. Dello Russo, A. Zifarelli, A. Elefante, P.Z. Wieczorek,T. Starecki, V.M.N. Passaro, F.K. Tittel and Vincenzo Spagnolo, “Front-End Amplifiers for Tuning Forks in Quartz Enhanced PhotoAcoustic Spectroscopy”, Appl. Sci. 10, 2947 (2020).
F. Sgobba, G. Menduni , S. Dello Russo, A. Sampaolo, P. Patimisco, M. Giglio, E. Ranieri, V.M.N. Passaro, F.K. Tittel and V. Spagnolo, “Quartz-Enhanced Photoacoustic Detection of Ethane in the Near-IR Exploiting a Highly Performant Spectrophone”, Appl. Sci. 10, 2447 (2020).
Y. Ma, S. Qiao, P. Patimisco, A. Sampaolo, Y. Wang, F.K. Tittel, V. Spagnolo, “In-plane quartz-enhanced photoacoustic spectroscopy”, Applied Physics Letters 116, 061101 (2020).
S. Dello Russo, S. Zhou, A. Zifarelli, P. Patimisco, A. Sampaolo, M. Giglio, D. Iannuzzi, V. Spagnolo, “Photoacoustic spectroscopy for gas sensing: A comparison between piezoelectric and interferometric readout in custom quartz tuning forks”, Photoacoustics 17, 100155 (2020).
M. Giglio, A. Zifarelli, A. Sampaolo, G. Menduni, A. Elefante, R. Blanchard, C. Pfluegl, M.F. Witinski, D. Vakhshoori, H. Wu, V.M.N. Passaro, P. Patimisco, F.K. Tittel, L. Dong, V. Spagnolo, “Broadband detection of methane and nitrous oxide using a distributed feedback quantum cascade laser array and quartz-enhanced photoacoustic sensing”, Photoacoustics 17, 100159 (2020).
Y. Ma , Y. He, P. Patimisco, A. Sampaolo, S. Qiao, X. Yu, F.K. Tittel, V. Spagnolo, “Ultra-high sensitive trace gas detection based on light-induced thermoelastic spectroscopy and a custom quartz tuning fork”, Applied Physics Letters 116, 011103 (2020).
S. Li, H. Wu, R. Cui, A. Sampaolo, P. Patimisco, V. Spagnolo, F.K. Tittel, L. Dong, “Piezo-enhanced acoustic detection module for mid-infrared trace gas sensing using a grooved quartz tuning fork”, Optics Express 27, 35267-35278 (2019).
A. Elefante, M. Giglio, A. Sampaolo, G. Menduni, P. Patimisco, V. M.N. Passaro, H. Wu, H. Rossmadl, V. Mackowiak, A. Cable, F.K. Tittel, L. Dong and V. Spagnolo, “Dual-Gas Quartz-Enhanced Photoacoustic Sensor for Simultaneous Detection of Methane/Nitrous Oxide and Water Vapor”, Anal. Chem. 91, 12866-12873 (2019).
S. Dello Russo, M. Giglio, A. Sampaolo, P. Patimisco, G. Menduni, H. Wu, L. Dong, V. M. N. Passaro and V. Spagnolo, “Acoustic Coupling between Resonator Tubes in Quartz-Enhanced Photoacoustic Spectrophones Employing a Large Prong Spacing Tuning Fork”, Sensors 19, 4109 (2019).
H. Zheng, H. Lin, L. Dong, Y. Liu, P. Patimisco, J. Zweck, A. Mozumder, A. Sampaolo, V. spagnolo, B. Huang, J. Tang, L. Dong, W. Zhu, J. Yu, Z. Chen, F.K. Tittel, “Influence of Tuning Fork Resonance Properties on Quartz-Enhanced Photoacoustic Spectroscopy Performance”, Sensors 19, 3285 (2019).
H. Wu, L. Dong, X. Yin, A. Sampaolo, P. Patimisco, W. Ma, L. Zhang, W. Yin, L. Xiao, V. Spagnolo, S. Jia, “Atmospheric CH4 measurement near a landfill using an ICL-based QEPAS sensor with V-T relaxation self-calibration”, Sens. Act. B Chem. 297, 126753 (2019).
S. Li, L. Dong, H. Wu, A. Sampaolo, P. Patimisco, V. Spagnolo, F.K. Tittel, “Ppb-Level Quartz-Enhanced Photoacoustic Detection of Carbon Monoxide Exploiting a Surface Grooved Tuning Fork”, Anal. Chem. 91, 5834-5840 (2019)
S. Li, L. Dong, H. Wu, X. Yin, W. Ma, L. Zhang, W. Yin, A. Sampaolo, P. Patimisco, V. Spagnolo, S. Jia, F.K. Tittel, “Simultaneous multi-gas detection between 3 and 4 μm based on a 2.5-m multipass cell and a tunable Fabry-Pérot filter detector”, Spectrochimica Acta A 216, 154-160 (2019).
M. Giglio, A. Elefante, P. Patimisco, A. Sampaolo, F. Sgobba, H. Rossmadl, V. Mackowiak, H. Wu, F.K. Tittel, L. Dong, V. Spagnolo, “Quartz-enhanced photoacoustic sensor for ethylene detection implementing optimized custom tuning fork-based spectrophone”, Optics Express 27, 4271-4280 (2019).
P. Patimisco, A. Sampaolo, M. Giglio, S. Dello Russo, V. Mackowiak, H. Rossmadl, A. Cable, F.K. Tittel, V. Spagnolo, “Tuning forks with optimized geometries for quartz-enhanced photoacoustic spectroscopy”, Optics Express 27, 1401-1415 (2019).
M. Giglio, G. Menduni, P. Patimisco, A. Sampaolo, A. Elefante, V.M.N. Passaro, and V. Spagnolo, “Damping Mechanisms of Piezoelectric Quartz Tuning Forks Employed in Photoacoustic Spectroscopy for Trace Gas Sensing”, Phys. Status Solidi A,216, 1800552 (2019).
A. Sampaolo, S. Csutak, P. Patimisco, M. Giglio, G. Menduni, V. Passaro, F.K. Tittel, M. Deffenbaugh, V. Spagnolo, “Methane, ethane and propane detection using a compact quartz enhanced photoacoustic sensors and a single interband cascade laser”, Sens. Act. B Chem. 282, 952-960 (2019)
M. Giglio, P. Patimisco, A. Sampaolo, A. Zifarelli, R. Blanchard, C. Pfluegl, M.F. Witinski, D. Vakhshoori, F.K. Tittel, and V. Spagnolo, “Nitrous oxide quartz-enhanced photoacoustic detection employing a broadband distributed-feedback quantum cascade laser array”, App. Phys. Lett. 113, 171101 (2018).
P. Patimisco, A. Sampaolo, V. Mackowiak, H. Rossmadl, A. Cable, F.K. Tittel, and V. Spagnolo, “Loss Mechanisms Determining the Quality Factors in Quartz Tuning Forks Vibrating at the Fundamental and First Overtone Modes, IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL, 65, 1951-1957 (2018).
Q. Wang, Z. Wang, W. Ren, P. Patimisco, A. Sampaolo, V. Spagnolo, “Fiber-ring laser intracavity QEPAS gas sensor using a 7.2 kHz quartz tuning fork”, Sens. Act. B Chem. 268, 512-518 (2018).
P. Patimisco, A. Sampaolo, M. Giglio, V. Mackoviak, H. Rossmadl, B. Gross, A. Cable, F.K. Tittel, V. Spagnolo, “Octupole electrode pattern for tuning forks vibrating at the first overtone mode in quartz-enhanced photoacoustic spectroscopy”, Optics Letters 43, 1854-1857 (2018).
Patimisco, A. Sampaolo, L. Dong, F.K. Tittel, Vincenzo Spagnolo, “Recent advances in quartz enhanced photoacoustic sensing, Appl. Phys. Rev. 5, 011106 (2018).
P. Patimisco, A. Sampaolo, F.K. Tittel, Vincenzo Spagnolo, “Mode matching of a laser-beam to a compact high finesse bow-tie optical cavity for quartz enhanced photoacoustic gas sensing”, Sens. Actuators A 267, 70-75 (2017).
M. Giglio, P. Patimisco, A. Sampaolo, J. Kriesel, F.K. Tittel and V. Spagnolo, “Low-loss and single-mode tapered hollow-core waveguides optically coupled with interband and quantum cascade lasers”, Opt. Eng. 57, 011004 (2017).
H. Wu, X. Yin, L. Dong, K. Pei, A. Sampaolo, P. Patimisco, H. Zheng, W. Ma, L. Zhang, W. Yin, L. Xiao, V. Spagnolo, S. Jia, and Frank K. Tittel, “Simultaneous dual-gas QEPAS detection based on a fundamental and overtone combined vibration of quartz tuning fork”, Applied Physics Letters 110, 121104 (2017).
H. Zheng, L. Dong, P. Patimisco, H. Wu, A. Sampaolo, X. Yin, S. Li, W. Ma, L. Zhang, W. Yin, L. Xiao, V. Spagnolo, S. Jia, and F.K. Tittel, “Double antinode excited quartz-enhanced photoacoustic spectrophone”, Applied Physics Letters 110, 021110 (2017).
P. Patimisco, A. Sampaolo, H. Zheng, L. Dong, F.K. Tittel, V. Spagnolo, “Quartz–enhanced photoacoustic spectrophones exploiting custom tuning forks: a review”, Advances in Physics X 2, 169-187 (2016).
Y. Bidaux, A. Bismuto, P. Patimisco, A. Sampaolo, T. Gresch, G. Strubi, S. Blaser, F.K. Tittel, V. Spagnolo, A. Muller, J. Faist, “Mid infrared quantum cascade laser operating in pure amplitude modulation for background-free trace gas spectroscopy“, Optics Express 24, 26464-26471 (2016).
P. Patimisco, A. Sampaolo, Y. Bidaux, A. Bismuto, M. Schott, J. Jiang, A. Muller, J. Faist, F.K. Tittel and V. Spagnolo, “Purely wavelength- and amplitude-modulated quartz-enhanced photoacoustic spectroscopy”, Optics Express 24, 25943-25954 (2016).
H. Zheng, L. Dong, A. Sampaolo, P. Patimisco, W. Ma, L. Zhang, W. Yin,L. Xiao, V. Spagnolo, S. Jia, F.K. Tittel, “Overtone resonance enhanced single-tube on-beam quartz enhanced photoacoustic spectrophone”, Applied Physics Letters 109, 111103 (2016).
A. Sampaolo, P. Patimisco, M. Giglio, L. Chieco, G. Scamarcio, F.K. Tittel, and V. Spagnolo, “Highly sensitive gas leak detector based on a quartz-enhanced photoacoustic SF6 sensor”, Optics Express 24, 15872-15881 (2016).
P. Patimisco, A. Sampaolo, L. Mihai, M. Giglio, J. Kriesel, D. Sporea, G. Scamarcio, F.K. Tittel and V. Spagnolo, “Low-Loss Coupling of Quantum Cascade Lasers into Hollow-Core Waveguides with Single-Mode Output in the 3.7–7.6 μm Spectral Range”, Sensors 16, 533 (2016).
A. Sampaolo, P. Patimisco, M. Giglio, M.S. Vitiello, H.E. Beere, D.A. Ritchie, G. Scamarcio, F.K. Tittel and V. Spagnolo, “Improved Tuning Fork for Terahertz Quartz-Enhanced Photoacoustic Spectroscopy”, Sensors , 16, 439 (2016).
F.K. Tittel, A. Sampaolo, P. Patimisco, L. Dong, A. Geras, T. Starecki, and V. Spagnolo, “Analysis of overtone flexural modes operation in quartz-enhanced photoacoustic spectroscopy”, Optics Express 24, A682-A692 (2016).
H. Zheng, L. Dong, A. Sampaolo, H. Wu, P. Patimisco, X. Yin, W. Ma, L. Zhang, W. Yin, V. Spagnolo, S. Jia, and F. K. Tittel, “Single-tube on-beam quartz-enhanced photoacoustic spectroscopy”, Optics Letters 41, 978-981 (2016)
P. Patimisco, A. Sampaolo, L. Dong, M. Giglio, G. Scamarcio, F. K. Tittel, and V. Spagnolo, “Analysis of the electro-elastic properties of custom quartz tuning forks for optoacoustic gas sensing”, Sensors and Actuators B 227, 539-546 (2016).
M. Giglio, P. Patimisco, A. Sampaolo, G. Scamarcio, F.K. Tittel and V. Spagnolo, “Allan Deviation Plot as a Tool for Quartz Enhanced Photoacoustic Sensors Noise Analysis”, IEEE transactions on ultrasonics, ferroelectrics, and frequency control 63, 555-560 (2016).
A. Sampaolo, P. Patimisco, L. Dong, A. Geras, G. Scamarcio, T. Starecki, F. K. Tittel, and V. Spagnolo, “Quartz-enhanced photoacoustic spectroscopy exploiting tuning fork overtone modes”, Applied Physics Letters 107, 231102 (2015).
H. Wu, A. Sampaolo, L. Dong, P. Patimisco, X. Liu, H. Zheng, X. Yin, W. Ma, L. Zhang, W. Yin, V. Spagnolo, S. Jia, and F.K. Tittel, “Quartz enhanced photoacoustic H2S gas sensor based on a fiber-amplifier source and a custom tuning fork with large prong spacing”, Applied Physics Letters 107, 111104 (2015).
P. Patimisco, A. Sampaolo, M. Giglio, J.M. Kriesel, F.K. Tittel and V. Spagnolo, “Hollow core waveguide as mid-infrared laser modal beam filter”, Journal of Applied Physics 118, 113102 (2015).
G. Scamarcio, M.S. Vitiello and V. Spagnolo, “Filling the THz gap”, Il Nuovo Saggiatore, Vol. 31, 43-50 (2015).
F.P. Mezzapesa, L.L. Columbo, G. De Risi, M. Brambilla, M. Dabbicco, V. Spagnolo, G. Scamarcio, “Nanoscale displacement sensing based on nonlinear frequency mixing in quantum cascade lasers”, IEEE Journal of Selected Topics in Quantum Electronics, 99 (2015).
V. Spagnolo, P. Patimisco, R. Pennetta, A. Sampaolo, G. Scamarcio, M.S. Vitiello and F.K. Tittel, “THz Quartz-enhanced photoacoustic sensor for H2S trace gas detection”, Optics Express 23, pp. 7574-7582 (2015).
S. Viciani, M. Siciliani de Cumis, S. Borri, P. Patimisco, A. Sampaolo, G. Scamarcio, P. De Natale, F. D’Amato, V. Spagnolo, “A quartz-enhanced photoacoustic sensor for H2S trace-gas detection at 2.6 μm”, Applied Physics B. 119, 21-27 (2015).
A. Sampaolo, P. Patimisco, J.M. Kriesel, F.K. Tittel, G. Scamarcio, and V. Spagnolo, “Single mode operation with mid-IR hollow fibers in the range 5.1-10.5 µm”, Optics Express 23, 195–204 (2015).
P. Patimisco, S. Borri, I. Galli, D. Mazzotti, G. Giusfredi, N. Akikusa, M. Yamanishi, G. Scamarcio, P. De Natale, and V.Spagnolo, “High finesse optical cavity coupled with a quartz-enhanced photoacoustic spectroscopic sensor”, Analyst, 140, 736-743 (2015).
M. Siciliani de Cumis, S. Viciani, S. Borri, P. Patimisco, A. Sampaolo, G. Scamarcio, P. De Natale, F. D’Amato and V. Spagnolo, “Widely tunable mid-infared fiber coupled quartz-enhanced photoacoustic sensor for enviromental monitoring”, Optics Express 22, 28222-28231 (2014).
P. Patimisco, G. Scamarcio, F.K. Tittel and V. Spagnolo, “Quartz-Enhanced Photoacoustic Spectroscopy: A Review”, Sensors 14, 6165-6206 (2014).
S. Borri, P. Patimisco, I. Galli, D. Mazzotti, G. Giusfredi, N. Akikusa, M. Yamanishi, G. Scamarcio, P. De Natale and V. Spagnolo, “Intracavity quartz-enhanced photoacoustic sensor”Applied Physics Letters 104, 091114 (2014).
M. Jahjah, W. Kiang, N.P. Sanchez, W. Ren, P. Patimisco, V. Spagnolo, S.C. Herndon, R.J. Griffin, F.K. Tittel, “Atmospheric CH4 and N2O measurements near Greater Houston area landfills using QCL-based QEPAS sensor system during DISCOVERY-AQ 2013”, Optics Letters 39, 957 (2014).
W. Ren, W. Jiang, N.P. Sanchez, P. Patimisco, V. Spagnolo, C. Zah, F. Xie, L.C. Hughes, R.J. Griffin, and F.K. Tittel, “Hydrogen peroxide detection with quartz-enhanced photoacoustic spectroscopy using a distributed-feedback quantum cascade laser”, Appl. Phys. Lett. 104, 041117 (2014).
P. Patimisco, S. Borri, A. Sampaolo, H. E. Beere, D. A. Ritchie, M. S. Vitiello, G. Scamarcio, and V. Spagnolo, “Quartz enhanced photo-acoustic gas sensor based on custom tuning fork and terahertz quantum cascade laser”, Analyst 139, 2079-2087 (2014).
F.P. Mezzapesa, L.L. Columbo, A. Ancona, M. Dabbicco, V. Spagnolo, M. Brambilla, P.M. Lugarà, G. Scamarcio, “On line sensing of ultrafast laser microdrilling processes by optical feedback interferometry”, Physics Procedia 41, 663-669 (2013).
S. Borri, P. Patimisco, A. Sampaolo, H. E. Beere, D. A. Ritchie, M. S. Vitiello, G. Scamarcio, and V. Spagnolo, “Terahertz quartz enhanced photo-acoustic sensor”, Appl. Phys. Lett. 103, 021105 (2013).
G. Scamarcio, M. S. Vitiello, V. Spagnolo, “Hot Electrons in THz Quantum Cascade Lasers”, Journal of Infrared Millimeter and Terahertz Waves 34, 357-373 (2013).
P. Patimisco, G. Scamarcio, M. V. Santacroce, V. Spagnolo, M. S. Vitiello, E. Dupont, S. R. Laframboise, S. Fathololoumi, G. S. Razavipour and Z. Wasilewski, “Electronic temperatures of terahertz quantum cascade active regions with phonon scattering assisted injection and extraction scheme” Optics Express, 21, 10172-10181 (2013)
V. Spagnolo, P. Patimisco, S. Borri, G. Scamarcio, B.E. Bernacki, J.Kriesel, “Mid-infrared fiber-coupled QCL-QEPAS sensor”, Appl. Phys. B 122, 25-33 (2013).
P. Patimisco, V. Spagnolo, M.S. Vitiello, G. Scamarcio, C.M. Bledt J.A. Harrington, “Low-Loss Hollow Waveguide Fibers for Mid-Infrared Quantum Cascade Laser Sensing Applications”, Sensors 13, 1329-1340 (2013).
F. Mezzapesa, V. Spagnolo, A. Ancona, G. Scamarcio, “Detection of ultrafast laser ablation using quantum cascade laser-based sensing”, Applied Physics Lett. 101, 171107-171110 (2012).
V. Spagnolo, P. Patimisco, S. Borri, G. Scamarcio, B.E. Bernacki, J.Kriesel, “Part-per-trillion level SF6 detection using a quartz enhanced photoacoustic spectroscopy based sensor with single-mode fiber-coupled quantum cascade laser excitation”, Optic Letters Vol. 37, 460-462 (2012).
P. Patimisco, V. Spagnolo, M.S. Vitiello, A. Tredicucci, G. Scamarcio, C.M. Bledt, J.A. Harrington, “Coupling external cavity mid-IR quantum cascade lasers with low loss hollow metallic/dielectric waveguides”, Appl. Phys. B 102, 255-260 (2012)
V. Spagnolo, L. Dong, A. A. Kosterev, F. K. Tittel, “Modulation cancellation method for isotope 18O/16O ratio measurements in water “, Optics Express, 20, 3401-3407 (2012)
L. Dong, V. Spagnolo, R. Lewicki, F.K. Tittel, “Ppb-level detection of nitric oxide using an external cavity quantum cascade laser based QEPAS sensor”, Optics Express, 19, 24037-24045 (2011)
V. Spagnolo, L. Dong, A. A. Kosterev, D. Thomazy, J. H. Doty, F. K. Tittel, “Modulation cancellation method for measurements of small temperature differences in a gas”, Optic letters, 36 p. 460-462, (2011)
V. Spagnolo, L. Dong, A. A. Kosterev, D. Thomazy, J. H. Doty, F. K. Tittel, “Modulation cancellation method in laser spectroscopy”, Appl. Phys. B 103, 735-742 (2011)
V. Spagnolo, A.A. Kosterev, L. Dong, R. Lewicki, F.K. Tittel, “NO trace gas sensor based on quartz-enhanced photoacoustic spectroscopy and external cavity quantum cascade laser”, Appl. Phys. B 100, 125-130 (2010)
A. Elia, V. Spagnolo, C. Di Franco, P.M. Lugarà, G. Scamarcio, “Quantum cascade laser based photoacoustic sensor for environmental pollution monitoring”, Il Nuovo Cimento B 125, 613-622 (2010).
A. Elia, P.M. Lugara, C. Di Franco, V. Spagnolo, “Photoacoustic Techniques for Trace Gas Sensing Based on Semiconductor Laser”, Sensors 9 , 9616-9628 (2009)
V.Spagnolo, M.S.Vitiello, G.Scamarcio, C. Di Franco, “Thermal Modelling of Quantum Cascade Lasers”, Acta Physica Polonica A 116, 451-454 (2009)
A. Elia, C. Di Franco, V. Spagnolo, P.M. Lugarà, G. Scamarcio, “Quantum Cascade Laser-Based Photoacoustic Sensor for Trace Detection of Formaldehyde Gas”, Sensors 9, 2697-2705 (2009).
C. Di Franco, A. Elia, V. Spagnolo, G. Scamarcio, P.M. Lugarà, E. Ieva, N. Cioffi, L. Torsi, G. Bruno, M. Losurdo, M.A. Garcia, S.D. Wolter, A. Brown, M. Ricco, “Optical and electronic NOx sensors for applications in mechatronics”, Sensors 9, 3337-3356 (2009).
A. Elia, P.M. Lugarà, C. Di Franco, V. Spagnolo, “Photoacoustic Techniques for Trace Gas Sensing Based on Semiconductor Laser Sources”, Sensors 9, 9616-9628 (2009).
G. Scamarcio, M.S.Vitiello, V.Spagnolo, S.Kumar, B.S.Williams and Q.Hu,, “Nanoscale heat transfer in quantum cascade lasers”, Physica E, 40, 1780 (2008). ISSN: 1386-9477.
V.Spagnolo, A.Lops, G.Scamarcio, M.S.Vitiello, and C. Di Franco , “Improved thermal management of mid-IR quantum cascade lasers”, Journal of Applied Physics, 103, 043103 (2008).
M.S.Vitiello, G.Scamarcio and V.Spagnolo, “Temperature dependence of thermal conductivity and boundary resistance in THz quantum cascade lasers”, IEEE, Journal of Selected Topics in Quantum Electronics, 14, pg 431-435 (2008).
G.Scamarcio, M.S.Vitiello, V.Spagnolo, “Experimental Investigation of Hot Carriers in Terahertz Quantum Cascade Lasers”, Acta Physica Polonica A, 113, 3 (2008).
M.S.Vitiello, G.Scamarcio, V.Spagnolo, “Time-resolved measurement of the local lattice temperature in terahertz quantum cascade lasers”, Applied Physics Letters, 92, 101116 (2008).
A.C.Evans, D.Indjin, Z.Ikonic, P.Harrison, M.S.Vitiello, V.Spagnolo, G.Scamarcio, “Thermal Modeling of Terahertz Quantum-Cascade Lasers: Comparison of Optical Waveguides”, IEEE Journal of Quantum Electronics, 44, 680 (2008).
M.S.Vitiello, G.Scamarcio, V.Spagnolo, W.W.Bewley, M.Kim, C.S.Kim, I.Vurgaftman, J.R.Meyer, A.Lops, “Micro-probe photoluminescence assessment of the wall-plug efficiency in interband cascade lasers”, Journal of Applied Physics, 104, 104, 046101 (2008).
M.S.Vitiello, V.Spagnolo, G.Scamarcio, A.Lops, Q.Yang, C.Manz, J.Wagner, “Experimental investigation of the lattice and electronic temperatures in Ga0.47In0.53As/Al0.62Ga0.38As1−xSbx quantum-cascade lasers”, Applied Physics Letters, 90, 121109 (2007).
M.S.Vitiello, G.Scamarcio, V.Spagnolo, S.S.Dhillon and C.Sirtori, “THz quantum cascade lasers with large wall-plug efficiency”, Applied Physics Letters, 90, 191115 (2007).
M.S.Vitiello, G.Scamarcio, V.Spagnolo, Q.Yang, C.Manz, J.Wagner, D.Revin, and J.Cockburn, “µ-probe photoluminescence study of mid-IR quantum cascade lasers based on antimonide ternary and quaternary barriers”, J. Nanophoton., 1, 013512 (2007).
M.S.Vitiello, G.Scamarcio and V.Spagnolo, “High-performance terahertz quantum cascade lasers operating at 106 μm: analysis of the thermal and electronic properties”, J. Nanophoton., 1, 013514 (2007).
M.S.Vitiello, T.Gresch, A.Lops, V.Spagnolo, G.Scamarcio, N.Hoyler, M.Giovannini and J.Faist , “Influence of InAs, AlAs δ-layers on the optical, electronic and thermal characteristics of strain-compensated GaInAs/AlInAs quantum-cascade lasers” , Applied Physics Letters 91, 161111 (2007).
M.S.Vitiello, G.Scamarcio, V.Spagnolo, T.Losco, R.P.Green, A.Tredicucci, H.E.Beere and D.A.Ritchie, “Electron lattice coupling in bound-to-continuum THz quantum cascade lasers”, Applied Physics Letters, 88, 241109, (2006).
A.Lops, V.Spagnolo, G.Scamarcio, “Thermal modelling of GaInAs/AlInAs quantum cascade lasers”, Journal of Applied Physics, 100, 043109 (2006)
M.S.Vitiello, G.Scamarcio, V.Spagnolo, J.Alton, S.Barbieri, C.Worral, H.E.Beere, D.A.Ritchie and C.Sirtori, “Thermal properties of THz quantum cascade lasers based on different optical waveguide configurations” , Applied Physics Letters, 89, 021111 (2006).
M.S.Vitiello, G.Scamarcio, V.Spagnolo, C.Worral, H.E.Beere, D.A.Ritchie, C.Sirtori, J.Alton and S.Barbieri, “Subband electronic temperatures and electron-lattice energy relaxation in THz QCLs with different conduction band offsets”, Applied Physics Letters, 89, 131114 (2006).
M.S.Vitiello, G.Scamarcio V.Spagnolo, B.S.Williams, S.Kumar, Q.Hu, J.L.Reno, “Measurement of subband electronic temperatures and population inversion in THz quantum cascade lasers”, Applied Physics Letters, 86, 111115 (2005).
M.S.Vitiello, V.Spagnolo, G.Scamarcio, D.G. Revin, J.W. Cockburn, M.J. Steer, R.J. Airey, “Electronic spatial distribution of In0.53Ga0.47As/AlAs0.56Sb0.44 quantum-cascade lasers”, Journal of Applied Physics (Rapid Communication), 98, 086107 (2005).
V.Spagnolo, G.Scamarcio, W. Shrenk, G.Strasser, “Influence of the band-offset on the electronic temperature of GaAs/AlGaAs superlattice quantum cascade lasers”, Semicond. Sci. Technol., 19 110–112 (2004).
V.Spagnolo, G.Scamarcio, H.Page, C.Sirtori, “Simultaneous measurement of the electronic and lattice temperatures in GaAs/Al0.45Ga0.55As quantum-cascade lasers: influence on the optical performance”, Applied Physics Letters, 84 3690-3692 (2004). I
M. Dabbicco, V. Spagnolo, M. Ferrara, G. Scamarcio, “Experimental Determination of the Temperature Distribution in Trench-Confined Oxide Vertical-Cavity Surface-Emitting Lasers”, IEEE Journal of Quantum Electronics, 39 701- 707 (2003).
V.Spagnolo, D.Marano, G.Scamarcio, H.Page, C.Becker, C.Sirtori, “Thermoelastic stress in GaAs/AlGaAs quantum cascade lasers”, Applied Physics Letters, 82 4639-4641(2003).
M.Dabbicco, V.Spagnolo, G.Scamarcio, “2-D Temperature mapping of Vertical-Cavity Surface-Emitting Lasers determined by microprobe electroluminescence”, IEEE Photonic Tecnology Letters, 14, 266-268 (2002).
V.Spagnolo, G.Scamarcio, M.Troccoli, F.Capasso, C.Gmachl, A.M. Sergent, A.L. Hutchinson, D.L. Sivco, A.Y. Cho, “Non-equilibrium optical phonon generation by steady-state electron transport in quantum cascade structures”, Applied Physics Letters, 80, 4303-4305 (2002). ISSN: 0003-6951.
V. Spagnolo, M. Troccoli, G. Scamarcio, C. Becker, G. Glastre, C. Sirtori, “Facet temperature mapping of GaAs/AlGaAs quantum cascade lasers by photoluminescence microprobe”, Optical Materials, 17, 219-222 (2001).
V.Spagnolo, M.Troccoli, G.Scamarcio, C.Gmachl, F.Capasso, A.Tredicucci, A.M. Sergent, A.L. Hutchinson, D.L. Sivco, A.Y. Cho, “Temperature profile of GaInAs/AlInAs/InP quantum cascade laser facets measured by micro-probe photoluminescence”, Applied Physics Letters, 78, 2095-2097 (2001). ISSN: 0003-6951.
V.Spagnolo, M.Troccoli, G.Scamarcio, C.Becker, G.Glastre, C. Sirtori, “Thermal resistance and temperature characteristics of GaAs/Al0.33Ga0.67As quantum cascade lasers”, Applied Physics Letters, 78, 1177-1179 (2001).
A.Ancona, V.Spagnolo, M.Lugarà, M.Ferrara, “Optical sensor for real time laser welding process monitoring”, Applied Optics, 40, 6019-6025 (2001). ISSN: 0003-6935.
M. L. Curri, A. Agostiano, L. Manna, M. Della Monica, M. Catalano, L. Chiavarone, V. Spagnolo, P. M. Lugarà, “Synthesis and characterization CdS nanoclusters in a quaternary microemulsion: the role of the co-surfactant”, Journal of Physical Chemistry, B104, 8391-97 (2000). ISSN: 1520-6106.
M.Troccoli, G.Scamarcio, V.Spagnolo, A.Tredicucci, C.Gmachl, F.Capasso, D.L.Sivco, A.Y.Cho, M.Striccoli, “Electronic distribution in superlattice quantum cascade lasers”, Applied Physics Letters 77, 1088-1090 (2000).
G. Vitali, C. Pizzuto G.Zollo, D.Karpuzov, M.Kalitzova, P.van der Heide, G.Scamarcio, V.Spagnolo , L.Chiavarone and D.Manno, “Structural reordering and electrical activation of ion-implanted GaAs and InP due to laser annealing in a controlled atmosphere”, Physical Review B15, 2986-94 (1999). ISSN: 0094-0003.
V. Spagnolo, G.Scamarcio, R.Colombelli, J.M. Jancu, F.Beltram, L.Sorba, B.Mueller and A.Franciosi, “Evidence of electronic confinement in pseudomorphic Si/GaAs superlattices”, Physical Review B57 (Rapid Communication), R15100-103 (1998)
G. Scamarcio, V. Spagnolo, G.Ventruti, M.Lugarà, G.C.Righini, “Size dependence of Fröhlich electron-LO-phonon coupling in semiconductor nanocrystals”, Physical Review B53 (Rapid Communication), R10489-92 (1996).
V. Spagnolo, G.Ventruti, G.Scamarcio, M.Lugarà, G.C.Righini, “Fröhlich electron-phonon interaction in CdSxSe1-x nanocrystals”, Superlattice and Microstructures, 18, 113-119 (1995).
G.Scamarcio, V.Spagnolo, C.Corvasce, M.Lugarà, I.Suemune ,”One and Two phonon scattering processes in ZnSe/ZnxSe1-x superlattices studied by Micro-Raman spectroscopy”, Physical Review B50 (Rapid Communication), 4988-90 (1994).
V. Spagnolo, G.Scamarcio, C.Corvasce, M.Lugarà, I.Suemune, “Well width dependence of electron-phonon interaction in ZnSe/ZnSxSe1-x superlattices determined by Micro-Raman spectroscopy”, Superlattices and Microstructures, 16, 47-49 (1994).
V. Spagnolo, G.Scamarcio, M.Lugarà, G.C.Righini, “Raman scattering in CdTe1-xSex and CdS1-xSex nanocrystals embedded in glass”, Superlattices and Microstructures, 16, 51-54 (1994).
L.Sorba, G.Bratina, A.Franciosi, L.Tapfer, G.Scamarcio, V.Spagnolo, A.Migliori, P.Merli and E.Molinari, “Si-GaAs(001) superlattices structure”, Journal of Crystal Growth, 127 ,121-125, (1993).
G.Scamarcio , V.Spagnolo , E.Molinari, L.Tapfer, L.Sorba, G.Bratina and A.Franciosi “Phonons in Si-GaAs superlattices” Physical Review B46 (Rapid Communication), 7296-99, (1992).
L. Sorba , G.Bratina, A. Franciosi, L. Tapfer , G. Scamarcio, V.Spagnolo and E.Molinari, “Si-GaAs(001) Superlattices”, Applied Physics Letters, 61, 1570-72, (1992).
R.Cingolani, M.Lomascolo, R.Rinaldi , V.Spagnolo, G.Scamarcio, M.Ferrara, A.Hase and H.Kunzel, “Excitons and electron-phonon interaction in In0.52Ga0.18Al0.30As layers”, Solid State Communications, 84, 679-683, (1992).
G. Scamarcio, V. Spagnolo, E. Molinari, L.Tapfer, L.Sorba, G.Bratina and A.Franciosi, “Vibrational Properties of Si-GaAs Superlattices”, Superlattices and Microstructures, 12, 429-432, (1992).

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