Techniques to enhance the photoacoustic signal for trace gas sensing: A review
Photoacoustic spectroscopy (PAS), which relies on the detection of absorption-induced
acoustic waves, is widely used for gas sensing. This paper summarizes and discusses most …
acoustic waves, is widely used for gas sensing. This paper summarizes and discusses most …
Direct absorption and photoacoustic spectroscopy for gas sensing and analysis: a critical review
Optical spectroscopy has a broad scientific basis in chemistry, physics, and material science,
with diverse applications in medicine, pharmaceuticals, agriculture, and environmental …
with diverse applications in medicine, pharmaceuticals, agriculture, and environmental …
[HTML][HTML] Integrated near-infrared fiber-optic photoacoustic sensing demodulator for ultra-high sensitivity gas detection
An integrated near-infrared fiber-optic photoacoustic sensing demodulator was established
for ultra-high sensitivity gas detection. The demodulator has capacities of interference …
for ultra-high sensitivity gas detection. The demodulator has capacities of interference …
Multiplexed fiber-optic photoacoustic sensors for simultaneous detection of multi-point gases
A multiplexing scheme of fiber-optic photoacoustic (PA) gas sensors is demonstrated for
simultaneous detection of multi-point gases. By sharing the PA demodulation device, the …
simultaneous detection of multi-point gases. By sharing the PA demodulation device, the …
Miniaturized anti-interference cantilever-enhanced fiber-optic photoacoustic methane sensor
To realize all-optical passive detection of CH 4 in narrow spaces and harsh environments, a
compact cantilever-enhanced fiber-optic photoacoustic sensor (CEFPS) resistant to …
compact cantilever-enhanced fiber-optic photoacoustic sensor (CEFPS) resistant to …
Advances in fiber-optic extrinsic Fabry–Perot interferometric physical and mechanical sensors: A review
Fabry–Perot interferometers (FPIs) have found a multitude of scientific and industrial
applications ranging from gravitational wave detection, high-resolution spectroscopy, and …
applications ranging from gravitational wave detection, high-resolution spectroscopy, and …
Fiber-optic trace gas sensing based on graphite excited photoacoustic wave
A fiber-optic trace gas sensing system based on photoacoustic (PA) effect of solids is
reported. The modulated laser light absorbed by the gas is incident on a graphite sheet. The …
reported. The modulated laser light absorbed by the gas is incident on a graphite sheet. The …
[HTML][HTML] Small-volume highly-sensitive all-optical gas sensor using non-resonant photoacoustic spectroscopy with dual silicon cantilever optical microphones
L Fu, P Lu, C Sima, J Zhao, Y Pan, T Li, X Zhang, D Liu - Photoacoustics, 2022 - Elsevier
A small-volume highly-sensitive photoacoustic spectroscopy (PAS) methane detection
system based on differential silicon cantilever optical microphones (SCOMs) is proposed …
system based on differential silicon cantilever optical microphones (SCOMs) is proposed …
Miniature mid-infrared photoacoustic gas sensor for detecting dissolved carbon dioxide in seawater
Z Wang, Y Zhang, X Huang, H Wang, J Zhao… - Sensors and Actuators B …, 2024 - Elsevier
A miniature mid-infrared photoacoustic (PA) gas sensor with a chamber volume of
approximately 73 μL for detection of dissolved gases in seawater was presented. This …
approximately 73 μL for detection of dissolved gases in seawater was presented. This …
Multi-pass absorption enhanced photoacoustic spectrometer based on combined light sources for dissolved gas analysis in oil
A highly sensitive multi-pass absorption enhanced photoacoustic (PA) spectrometer
(MPAEPAS) based on combined light sources for dissolved gas analysis (DGA) in oil has …
(MPAEPAS) based on combined light sources for dissolved gas analysis (DGA) in oil has …