Fiber-optic photoacoustic gas sensing: a review

X Zhao, HC Qi, Y Xu, C Li, M Guo… - Applied Spectroscopy …, 2025‏ - Taylor & Francis
Fiber-optic photoacoustic (PA) sensing has important applications in trace gas detection.
The fiber-optic Fabry-Perot acoustic sensor implemented applying a cantilever is a novel …

A review of all-optical photoacoustic spectroscopy as a gas sensing method

T Yang, W Chen, P Wang - Applied spectroscopy reviews, 2021‏ - Taylor & Francis
Photoacoustic spectroscopy (PAS) is an ultrasensitive method for gas sensing, which
usually using a capacitive microphone as a signal detector. However, the electric nature of …

[HTML][HTML] Highly sensitive photoacoustic acetylene detection based on differential photoacoustic cell with retro-reflection-cavity

C Zhang, S Qiao, Y Ma - Photoacoustics, 2023‏ - Elsevier
In this paper, a highly sensitive photoacoustic spectroscopy (PAS) sensor based on retro-
reflection-cavity-enhanced differential photoacoustic cell (DPAC) is demonstrated for the first …

Differential quartz-enhanced photoacoustic spectroscopy

C Zhang, S Qiao, Y He, S Zhou, L Qi, Y Ma - Applied Physics Letters, 2023‏ - pubs.aip.org
In this paper, a differential quartz-enhanced photoacoustic spectroscopy (D-QEPAS) sensor
is reported. The differential photoacoustic cell (PAC) was used to generate the …

Dense multibutterfly spots-enhanced miniaturized optical fiber photoacoustic gas sensor

X Zhao, H Qi, H Wang, X Wang, M Guo… - Analytical …, 2024‏ - ACS Publications
A miniaturized optical fiber photoacoustic gas sensor enhanced by dense multibutterfly
spots is reported for the first time. The principle of space light transmission of neglecting …

[HTML][HTML] High-sensitivity trace gas detection based on differential Helmholtz photoacoustic cell with dense spot pattern

C Zhang, Y He, S Qiao, Y Liu, Y Ma - Photoacoustics, 2024‏ - Elsevier
A high-sensitivity photoacoustic spectroscopy (PAS) sensor based on differential Helmholtz
photoacoustic cell (DHPAC) with dense spot pattern is reported in this paper for the first time …

[HTML][HTML] Integrated near-infrared fiber-optic photoacoustic sensing demodulator for ultra-high sensitivity gas detection

X Zhao, C Li, H Qi, J Huang, Y Xu, Z Wang, X Han… - Photoacoustics, 2023‏ - Elsevier
An integrated near-infrared fiber-optic photoacoustic sensing demodulator was established
for ultra-high sensitivity gas detection. The demodulator has capacities of interference …

Fiber optic photoacoustic gas sensor enhanced by multi-pass cell with overlap** phantom spots

X Zhao, H Wang, H Qi, Y Xu, M Guo, K Chen - Sensors and Actuators B …, 2024‏ - Elsevier
A neotype fiber optic photoacoustic gas sensor with overlap** phantom spots based multi-
pass is proposed, which greatly improves the reflection times and the length of gas …

Differential integrating sphere-based photoacoustic spectroscopy gas sensing

C Zhang, Y He, S Qiao, Y Ma - Optics Letters, 2023‏ - opg.optica.org
In this Letter, a differential integrating sphere-based photoacoustic spectroscopy (PAS) gas
sensor is proposed for the first time to our knowledge. The differential integrating sphere …

Ultra-high sensitive photoacoustic gas detector based on differential multi-pass cell

X Zhao, K Chen, D Cui, M Guo, C Li, H Qi… - Sensors and Actuators B …, 2022‏ - Elsevier
We designed and manufactured a set of high-sensitivity photoacoustic (PA) gas detector
based on differential multi-pass cell (DMPC) with a chamber volume of only 162 mL, which …