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.

Go to Fiber-coupled mid-IR QEPAS Sensors

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.

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.

Our Team

Vincenzo Luigi Spagnolo

Director – Full Professor – SPIE Fellow member – OSA Senior Member

Vittorio M. N. Passaro

Associate Professor – IEEE senior Member

Cristoforo Marzocca

Associate Professor – CEO Microlaben s.r.l.


Full Professor Shanxi University

Angelo Sampaolo

Research Assistant

Verena Mackowiak

Team Manager Research Projects Thorlabs GmbH

Hongpeng Wu

Lecturer Shanxi University

Hubert Rossmadl

Development engineer Thorlabs GmbH

Christian Brehm

Development engineer Thorlabs GmbH

Marilena Giglio

Research Assistant

Arianna Elefante

PhD Student

Giansergio Menduni

PhD Student

Angelo Campanale

PhD Student

Andrea Zifarelli

PhD Student

Stefano Dello Russo

PhD Student

Fabrizio Sgobba

PhD Student

Daniela Troiani

Administrative Secretary

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