Quartz-Enhanced Photoacoustic Spectroscopy with Right-Angle Prism [PDF]
Sensors, 2016 A right-angle prism was used to enhance the acoustic signal of a quartz-enhanced photoacoustic spectroscopy (QEPAS) system. The incident laser beam was parallelly inverted by the right-angle prism and passed through the gap between two tuning fork prongs
Yongning Liu +5 more
doaj +5 more sources
Quartz-enhanced multiheterodyne resonant photoacoustic spectroscopy
Light: Science & ApplicationsThe extension of dual-comb spectroscopy (DCS) to all wavelengths of light along with its ability to provide ultra-large dynamic range and ultra-high spectral resolution, renders it extremely useful for a diverse array of applications in physics ...
Jiapeng Wang +6 more
doaj +6 more sources
Quartz Enhanced Photoacoustic Spectroscopy Based on a Custom Quartz Tuning Fork [PDF]
Sensors, 2019 We have designed and fabricated a custom quartz tuning fork (QTF) with a reduced fundamental frequency; a larger gap between the prongs; and the best quality factor in air at atmospheric conditions ever reported, to our knowledge.
Maxime Duquesnoy +5 more
doaj +5 more sources
Quartz-Enhanced Photoacoustic Spectroscopy Sensor with a Small-Gap Quartz Tuning Fork [PDF]
Sensors, 2018 A highly sensitive quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor based on a custom quartz tuning fork (QTF) with a small-gap of 200 μm was demonstrated.
Yu-Fei Ma +4 more
doaj +5 more sources
Quartz-Enhanced Photoacoustic and Photothermal Spectroscopy [PDF]
Applied Sciences, 2022 The development of innovative gas-sensing systems is fundamental in diverse research fields such as physics, chemistry, biology, medicine and environmental science [...]
Hongpeng Wu, Angelo Sampaolo
doaj +2 more sources
Quartz-Enhanced Photoacoustic Spectroscopy for One-Health [PDF]
EPJ Web of Conferences, 2023 We report on the development of Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) technology to detect 8 different air pollutants, namely CH4, NO2, CO2, N2O, CO, NO, SO2 and NH3, with the same acoustic detection module and interchangeable laser sources,
Patimisco Pietro +9 more
doaj +2 more sources
Spatially engineered optical–acoustic matching in quartz-enhanced photoacoustic spectroscopy [PDF]
PhotoacousticsQuartz-enhanced photoacoustic spectroscopy (QEPAS) offers high sensitivity for trace-gas detection, but its performance is often limited by a spatial mismatch between distributed photoacoustic excitation and the intrinsic sensitivity region of the quartz
Ruyue Cui +10 more
doaj +2 more sources
Multi-quartz-enhanced photoacoustic spectroscopy [PDF]
Applied Physics Letters, 2015 A multi-quartz-enhanced photoacoustic spectroscopy (M-QEPAS) sensor system for trace gas detection is reported. Instead of a single quartz tuning fork (QTF) as used in QEPAS technique, a dual QTF sensor platform was adopted in M-QEPAS to increase the signal strength by the addition of the detected QEPAS signals.
Ma, Yufei +7 more
openaire +4 more sources
Monolithic Double Resonator for Quartz Enhanced Photoacoustic Spectroscopy [PDF]
Applied Sciences, 2021 A new approach for Quartz Enhanced Photoacoustic Spectroscopy is presented, based on an acoustic excitation from the outside of the prongs of a quartz tuning fork, to increase the sensitivity of the sensor.
Roman Rousseau +5 more
doaj +2 more sources
Quartz-Enhanced Photoacoustic Spectroscopy in the Terahertz Spectral Range
Photonics, 2023 Infrared laser photo-acoustic spectroscopy provides very high sensitivity of a gas sample analysis when high-power tunable laser radiation sources and resonant photo-acoustic detectors (PADs) are used.
Alexey P. Votintsev +4 more
doaj +3 more sources