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 …

Optical spectroscopy has a broad scientific basis in chemistry, physics, and material science,
with diverse applications in medicine, pharmaceuticals, agriculture, and environmental …

We designed and implemented a photoacoustic (PA) sensor for H2S detection in SF6
background gas based on a multi-pass differential photoacoustic cell (MDPC) and a near …

An ultrahigh sensitive trace gas sensing system was presented with dual cantilever-based
differential photoacoustic detection. By combining the double enhancement of multipass …

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 …

A cantilever enhanced fiber-optic photoacoustic microprobe with the cavity volume of only
119 μL is designed to detect SO 2, which has the obvious advantages of passive sensing …

A high-sensitivity fiber-optic Fabry-Perot (FP) photoacoustic gas detection system with
properties of anti-electromagnetic interference and intrinsically safe was presented for …

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 …

A ppbv-level mid-infrared photoacoustic spectroscopy sensor was developed for mouth
alcohol tests. A compact CO 2 laser with a sealed waveguide and integrated radio frequency …

An all-optical photoacoustic sensor for measuring the concentration of SF 6 decomposition
derivative SO 2 was designed, whose detection limit was in the order of ppb-level. An UV …