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Fiber-ring laser-based intracavity photoacoustic spectroscopy for trace gas sensing.
Optics Letters, 2017We demonstrated a novel trace gas sensing method based on fiber-ring laser intracavity photoacoustic spectroscopy. This spectroscopic technique is a merging of photoacoustic spectroscopy (PAS) with a fiber-ring cavity for sensitive and all-fiber gas detection.
Qiang Wang, Zhen Wang, Jun Chang, W. Ren
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Infrared Trace Gas Sensing With a Fast Perovskite Nano-Structure Laser Photodetector
IEEE Photonics Technology Letters, 2023In the present work, we firstly demonstrated infrared perovskite nanorods as a state-of-the-art fast photo-sensing core so that they could adapt to the demand of infrared trace gas sensing. Periodic perovskite nanorods can enhance light absorption in the
Xiang Liu +6 more
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Advances in fiber‐based quartz enhanced photoacoustic spectroscopy for trace gas sensing
Microwave and optical technology letters (Print), 2021Fiber‐based quartz enhanced photoacoustic spectroscopy (QEPAS) is a method for trace gas sensing with excellent properties such as high sensitivity and strong applicability. It has received extensive attention and become particularly attractive in recent
Wei-dong Feng +3 more
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Trace gas sensing based on single-quartz-enhanced photoacoustic-photothermal dual spectroscopy.
Optics Letters, 2021A single-quartz-enhanced dual spectroscopy (S-QEDS)-based trace gas sensor is reported for the first time, to the best of our knowledge. In S-QEDS, a quartz tuning fork (QTF) was utilized to detect the photoacoustic and photothermal signals ...
Shunda Qiao, Ying He, Yufei Ma
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Low-power wireless trace gas sensing network
SPIE Proceedings, 2011A basic wireless laser spectroscopic sensor network for monitoring of trace-gases will be presented. The prototype lowpower sensor nodes targeting carbon dioxide are based on tunable diode laser absorption spectroscopy and operate using a 2 μm VCSEL and a 3.5 m Herriott multi-pass cell.
Clinton J. Smith +4 more
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Remote Sensing and Trace Gas Fluxes
1990Most of the chapters in this volume emphasize the dynamics of energy, water, and carbon at the surface of the earth. These are major processes in the metabolism of the planet, and it is reasonable to expect that thermal and optical remote sensing could detect at least energy transformations rather directly.
Pamela A. Matson, Peter M. Vitousek
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Quantum cascade laser spectrometers for mobile trace-gas sensing
OSA High-brightness Sources and Light-driven Interactions Congress 2020 (EUVXRAY, HILAS, MICS), 2020Mid-IR spectroscopy using QCLs allows sensitive, selective, and fast detection of trace-gases. Recent developments permit rugged and lightweight instruments that create tantalizing options in environmental sciences and other fields, i.e. medicine or industrial process control.
Lukas Emmenegger +4 more
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Analytical Chemistry
An ultrahigh sensitive trace gas sensing system was presented with dual cantilever-based differential photoacoustic detection. By combining the double enhancement of multipass absorption and optical differential detection, the gas detection sensitivity ...
Xinyu Zhao +7 more
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An ultrahigh sensitive trace gas sensing system was presented with dual cantilever-based differential photoacoustic detection. By combining the double enhancement of multipass absorption and optical differential detection, the gas detection sensitivity ...
Xinyu Zhao +7 more
semanticscholar +1 more source
Macroporous SnO2/MoS2 inverse opal hierarchitecture for highly efficient trace NO2 gas sensing.
Chemical Communications, 2023The innovation of NO2 gas sensors is highly desirable in environmental monitoring and human safety. Herein, a macroporous SnO2/MoS2 inverse opal hierarchitecture has been constructed with substantial interface charge transfer, which realizes the ...
Hang Liu +8 more
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ACS Applied Materials and Interfaces, 2021
In this work, MXene Ti3C2Tx-derived nitrogen-functionalized heterophase TiO2 homojunctions (N-MXene) were prepared via the urea-involved solvothermal treatment with varying reaction time as the sensing layer to detect trace NH3 gas at room temperature ...
Yong Zhou +7 more
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In this work, MXene Ti3C2Tx-derived nitrogen-functionalized heterophase TiO2 homojunctions (N-MXene) were prepared via the urea-involved solvothermal treatment with varying reaction time as the sensing layer to detect trace NH3 gas at room temperature ...
Yong Zhou +7 more
semanticscholar +1 more source