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

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-precision photoacoustic (PA) gas analyzer for fast dynamic measurement of ambient
nitrogen dioxide (NO2) was developed. The PA analyzer used a differential PA cell …

A fiber-optic photoacoustic (PA) gas sensor with multiplexed Fabry–Pérot (F–P)
interferometric cantilevers is demonstrated. A compact cylindrical nonresonant PA tube with …

A self-calibration fiber-optic photoacoustic (PA) gas analyzer based on 2 f/1 f wavelength
modulation spectroscopy (WMS) is proposed, which utilizes gas and solid multipass …

The disturbance-immune, fast response light-induced thermoelastic spectroscopy (LITES)
gas sensor based on out-plane vibration (OPV) mode employing micro Fabry-Perot cavity …

Aiming at the problem of the fiber-optic photoacoustic (PA) sensor being easily disturbed by
external vibration and noise, a differential cantilever enhanced fiber-optic PA sensor is …

A rapid photoacoustic (PA) exhaust gas analyzer is presented for simultaneous
measurements of nitrogen dioxide (NO2) and sulfur dioxide (SO2). A laser diode (LD) …

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 …

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 …