As a new energy source, hydrogen (H2) detection is a hot topic in recent years. Because of
the weak absorption characteristic, laser spectroscopy-based H2 detection is challenging. In …

Abstract Fabry–Perot (F–P)-based phase demodulation of heterodyne light-induced
thermoelastic spectroscopy (H-LITES) was demonstrated for the first time in this study. The …

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 …

In this paper, a differential quartz-enhanced photoacoustic spectroscopy (D-QEPAS) sensor
is reported. The differential photoacoustic cell (PAC) was used to generate the …

Due to its advantages of non-contact measurement and high sensitivity, light-induced
thermoelastic spectroscopy (LITES) is one of the most promising methods for corrosive gas …

In this paper, an ultra-highly sensitive light-induced thermoelastic spectroscopy (LITES)
based hydrogen chloride (HCl) sensor, exploiting a custom low-frequency quartz tuning fork …

A highly sensitive light-induced thermoelectric spectroscopy (LITES) sensor based on a
multi-pass cell (MPC) with dense spot pattern and a novel quartz tuning fork (QTF) with low …

Photoacoustic cells play an important role in photoacoustic trace gas analysis, as they can
amplify the photoacoustic signal and improve detection limit. Therefore, the structure and …

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 …

In this Letter, a sensitive light-induced thermoelastic spectroscopy (LITES)-based trace gas
sensor by exploiting a super tiny quartz tuning fork (QTF) was demonstrated. The prong …