A review on the design of quartz tuning forks and their applications in quartz-enhanced
photoacoustic spectroscopy (QEPAS)-based trace gas sensors is reported. Standard …

We report on the development of a highly sensitive hydrogen sulfide (H 2 S) gas sensor
exploiting the doubly resonant photoacoustic spectroscopy technique and using a near …

Non-contact quartz-enhanced photoacoustic spectroscopy (NC-QEPAS) was proposed and
developed for trace gas analysis. The NC-QEPAS aims at solving the problem that the …

Research on carbon dioxide (CO2) geological and biogeochemical cycles in the ocean is
important to support the geoscience study. Continuous in-situ measurement of dissolved …

Quartz tuning fork (QTF)-based techniques of photoacoustic spectroscopy and thermoelastic
spectroscopy play a significant role in trace gas sensing due to unique high sensitivity and …

Photoacoustic spectroscopy (PAS) is a promising gas detection technique with high
sensitivity, fast response, and good stability. Frequency-modulated continuous-wave …

Dissolved gases in the aquatic environment are critical to understanding the population of
aquatic organisms and the ocean. Currently, laser absorption techniques based on …

To achieve multi-gas measurements of quartz-enhanced photoacoustic spectroscopy
(QEPAS) sensors under a frequency-division multiplexing mode with a narrow modulation …

A convenient method of light intensity correction for quartz-enhanced photoacoustic
spectroscopy (QEPAS) using photothermal baseline is demonstrated. The laser beam …

Droplet evaporation is a seemingly simple heat and mass transfer process, while of which
high-fidelity characterization of the vapor field remains a long-standing challenge. In this …