Photoacoustic imaging (PAI) takes advantage of both optical and ultrasound imaging
properties to visualize optical absorption with high resolution and contrast. Photoacoustic …

A gas sensing method based on quartz-tuning-fork enhanced photothermal spectroscopy
(QEPTS) is reported in this paper. Unlike usually used thermally sensitive elements, a …

This paper presents an optimized T-type resonant photoacoustic (PA) cell for methane (CH
4) gas detection. The noise transmission coefficients and PA field distributions of the T-type …

A silicon cantilever-enhanced photoacoustic spectroscopy (PAS)-based trace gas analyzer
with low gas consumption is presented. A silicon cantilever-based fiber-optic Fabry–Perot (F …

Antiresonant Hollow-Core Fibers (ARHCFs), thanks to the excellent capability of guiding
light in an air core with low loss over a very broad spectral range, have attracted significant …

Laser-based gas sensors are undergoing constant and rapid development due to their
usability in numerous applications focused on eg monitoring of greenhouse gases …

A high-sensitivity photoacoustic (PA) spectroscopy (PAS) system is proposed for dual
enhancement from both PA signal excitation and detection by employing a miniaturized …

We proposed and designed a high-sensitivity fiber-optic photoacoustic gas analyzer based
on resonant Herriott multipass cell (MPC) and fiber-optic cantilever acoustic sensor, which …

We demonstrate the mid-infrared absorption spectroscopy with a chalcogenide glass IG3
hollow-core antiresonant fiber (HC-ARF) for gas sensing at 10.5 µm. A continuous-wave …

We present a novel T-type half-open resonant photoacoustic (PA) cell for trace gas
detection. The T-type PA cell has just one buffer volume, and a fiber-optic acoustic sensor is …