Joint-Research LAb between THORLABS and Technical University of Bari devoted to gas sensing techniques

Our Research activities

Highly sensitive trace-gas sensors, portable, compact, robust for in-situ & real time detection

Compact acoustic detection modules

Realization of compact acoustic detection module including a custom-made quartz tuning fork and micro-resonator system, optical access via two windows and gas in and out connections.

Custom-made tuning forks and micro-resonators

Custom-made quartz tuning fork properly designed and realized to offer high performance for QEPAS sensors, in terms of quality factor and electrical charges collection efficiency.

Fiber-coupled mid-IR QEPAS Sensors

Fiber-optic components are key enabling technologies to improve the robustness and effectiveness of QEPAS sensors in terms of flexible beam guidance and compactness.

Cavity-Enhanced QEPAS Sensors

Ultra-sensitive and selective QEPAS sensors combined with high-finesse optical cavities can increase the detection sensitivity up to two orders of magnitude.


High sensitivity THz molecular spectroscopy is crucial for the study of chemical processes related to ozone depletion and global warming, as well as direct identification of explosives and drugs.

Go to EU Project OPTAPHI 2020-2023

EU Project OPTAPHI 2020-2023

The OPTAPHI Postgraduate Training Network aims to train doctoral students in the complementary fields of advanced spectroscopy and integrated optics. Specifically, the focus is on the methods of photo-acoustic and photo-thermal spectroscopy, and their integration with compact semiconductor lasers.



PASSEPARTOUT will advance the development and deployment of miniature, optical based sensors based on Quartz Enhanced Photo-acoustic Spectroscopy and Photo-Thermal Interferometry for a wide range of ambient pollutants. PASSPARTOUT will realize the first 3D mobile optical gas analyser network capable of operating in an urban area exploting on drone-mounted, vehicle-mounted and stationary sensors. (NOx, SO2, NH3, CH4, CO, CO2) and black carbon within urban areas, around landfills and seaports with extremely high precision and good spatial resolution.

Go to Quartz tuning forks photodetectors

Quartz tuning forks photodetectors

Quartz tuning forks as a narrow-bandwidth (∼1 Hz), fast-response (tens of kHz), broadband, high-responsivity infrared photodetectors, suitable for tunable laser-based absorption spectroscopy.

Quartz-Enhanced Photoacoustic Gas Sensors (QEPAS) are the most robust, compact and sensitive among the Optical Gas Sensors


Environmental Monitoring

Trace gas sensors are the heart of any monitoring system in industrial and urban areas. Real-time and in-situ QEPAS-based monitoring systems are crucial to ensure an environmentally sustainable territorial development.

Breath Analysis

Exhaled breath biomarkers have particular clinical appeal offering non-invasive medical diagnostics. Dedicated QEPAS sensors can be used as repeatable, continuous and real-time breath analysis tool.

Leaks detection

Gas Leak detection is a critical problem for several applications requiring hermetically closed areas. QEPAS-based leak sensors are several orders of magnitude more sensitive than a bubble test or helium sniffer.

Hydrocarbon monitoring

Portable Quartz enhanced photoacoustic sensors (QEPAS) system are capable to detect in situ methane, ethane, propane and butane in gas phase, with detection limits in the few part-per-million concentration range.

Monitoring of hotspot areas

Certain chemicals can be used in the illicit manufacture of explosives or to cause harm. Quartz enhanced photoacoustic sensors (QEPAS) system are capable to detect toxic gases and explosive precursors down to few part-per-million concentration range.

Go to Polysense Innovations srl

Polysense Innovations srl

PolySenSe Innovations is a spin-off company of the Polytechnic of Bari, devoted to the development of optical-based sensors, technical training for companies, and to find solution to strategic problems.

Our Team

Vincenzo Luigi Spagnolo

Director – Vice Rector – SPIE Fellow member – OSA Senior Member – Co-founder of PolySenSe Innovations s.r.l.

Pietro Patimisco

Assistant Professor – Technical committee Head – Co-founder of PolySenSe Innovations s.r.l

Angelo Sampaolo

Assistant Professor – Technical committee Member – Co-founder and CEO of PolySenSe Innovations s.r.l.

Verena Mackowiak

Team Manager Research Projects Thorlabs GmbH

Hubert Rossmadl

Development engineer Thorlabs GmbH

Christian Brehm

Development engineer Thorlabs GmbH

Andrea Zifarelli

Post-Doc Researcher

Vittorio M. N. Passaro

Full Professor – OSA Fellow Member – IEEE senior Member

Cristoforo Marzocca

Full Professor – CEO Microlaben s.r.l.


Full Professor Shanxi University

Hongpeng Wu

Full Professor Shanxi University

Huadan Zheng

Associate Professor Jinan University

Michele Di Gioia

PhD Student

Ada Cristina Ranieri

PhD Student

Elena Kniazeva

Marie Curie PhD Student

Gabriele Biagi

Marie Curie PhD Student

Anton Sukhinets

Marie Curie PhD Student

Kumar Kinjalk

Marie Curie PhD Student

Mariagrazia Olivieri

PhD Student

Raffaele De Palo

PhD Student

Francesco Paciolla

PhD Student

Biao Li

PhD Student Shaxi University

Contact us

Latest news