The detection and measurement of gas concentrations using the characteristic optical
absorption of the gas species is important for both understanding and monitoring a variety of …

The off‐axis integrated cavity output spectroscopy (OA‐ICOS) represents a suitable solution
in many applications with a simple structure and high sensitivity. The off‐axis configuration …

光程吸收光谱技术是吸收光谱技术发展中的一个重要分支, 近年来基于不同光源技术,
吸收腔技术, 探测方式的光程吸收光谱技术大量涌现. 随着对探测灵敏度和吸收光程长度需求的 …

Off-axis integrated cavity output spectroscopy (OA-ICOS) has generated much interest
because it potentially allows highly sensitive field measurements with robust optical …

We report a multi-pass tunable diode laser absorption spectrometer based on the frequency-
modulation spectroscopy (FMS) technique. It has the advantage of high scan speed and is …

For highly sensitive and accurate acetylene (C_2H_2) detection, a near-infrared (NIR) off-
axis integrated-cavity output spectroscopy (OA-ICOS) sensor system based on an ultra …

In this paper, a compact optical oxygen (O 2) sensor system was demonstrated based on off-
axis integrated cavity output spectroscopy (OA-ICOS). Light from a distributed feedback laser …

A portable sensor with an optical case dimension of 46× 28× 16 cm 3 based on laser
absorption spectroscopy for highly sensitive measurement of formaldehyde was reported. A …

A near-infrared methane (CH 4) sensor system was demonstrated by using off-axis
integrated cavity output spectroscopy (OA-ICOS), which was an effective gas-phase …

Hydrogen sulfide (H 2 S) trace detection has been performed by means of a DFB diode laser-
based off-axis integrated cavity output spectroscopy (OA-ICOS) near 1571.6 nm. A minimum …