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Multivariate spectral analysis in quartz-enhanced photoacoustic spectroscopy

Quantum Sensing and Nano Electronics and Photonics XIX, 2023
Here we report on the application of multivariate analysis on optical sensors for gas detection based on Quartz-Enhanced Photoacoustic Spectroscopy (QEPAS) technique, focused on the analysis of complex gas mixtures. In real-world applications the effects
Andrea Zifarelli, Giansergio Menduni, Aldo F. P. Cantatore, Pietro Patimisco, Christine Holzl, Vincenzo Spagnolo   +5 more
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Off-beam quartz-enhanced photoacoustic spectroscopy

Optics Letters, 2009
An off-beam (OB) detection approach is suggested and experimentally investigated and optimized for quartz-enhanced photoacoustic spectroscopy (QEPAS). This OB-QEPAS configuration, very simple in assembly, not only allows for use of larger excitation optical beams and facilitating optical alignment but also provides higher enhancement of photoacoustic ...
Kun, Liu, Xiaoyong, Guo, Hongming, Yi, Weidong, Chen, Weijun, Zhang, Xiaoming, Gao   +5 more
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Quartz-Enhanced Photoacoustic Spectroscopy-Conductance Spectroscopy for Gas Mixture Analysis

Analytical Chemistry, 2023
A novel spectroscopic method, named quartz-enhanced photoacoustic spectroscopy-conductance spectroscopy (QEPAS-CS), was first developed for gas mixture analysis. In QEPAS-CS, the advantage of photoacoustic detection and conductance analysis was realized by a quartz tuning fork (QTF).
Ruobin Zhuang, Leqing Lin, Chenglong Wang, Haoyang Lin, Huijian Luo, Haohua Lv, Wenguo Zhu, Yongchun Zhong, Bin Liu, Ruifeng Kan, Jianhui Yu, Huadan Zheng   +11 more
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Quartz-enhanced photoacoustic spectroscopy of methane isotopologues

Photonic Instrumentation Engineering VIII, 2021
We report on the detection of the isotopologues 12CH4 and 13CH4 by employing a quartz-enhanced photoacoustic spectroscopy (QEPAS)-based sensor. By properly selecting the exciting light source and the working conditions, two absorption lines, having a negligible cross-section ratio temperature coefficient of -6.7‰/°C and a cross section ratio of ~ 0.06 ...
Marilena Giglio, Angelo Sampaolo, Pietro Patimisco, Davide Pinto, Giansergio Menduni, Arianna Elefante, Stefano Dello Russo, Fabrizio Sgobba, Andrea Zifarelli, Frank K. Tittel, Vincenzo Spagnolo   +10 more
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Non-contact quartz-enhanced photoacoustic spectroscopy

Applied Physics Letters, 2023
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 quartz tuning fork (QTF) must be immersed in the gases for photoacoustic wave transducing, which limits its application for corrosive and dusty gas sensing.
Haoyang Lin, Chenglong Wang, Leqing Lin, Minshuai Wang, Wenguo Zhu, Yongchun Zhong, Jianhui Yu, Frank Tittel, Huadan Zheng   +8 more
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Double acoustic microresonator quartz-enhanced photoacoustic spectroscopy

Optics Letters, 2014
Quartz-enhanced photoacoustic spectroscopy (QEPAS) based on double acoustic microresonators (AmRs) is developed and experimentally investigated. The double AmR spectrophone configuration exhibits a strong acoustic coupling between the AmR and the quartz tuning fork, which results in a ∼5  ms fast response time.
Lei, Dong, Hongpeng, Wu, Huadan, Zheng, Yanyan, Liu, Xiaoli, Liu, Wenzhe, Jiang, Lei, Zhang, Weiguang, Ma, Wei, Ren, Wangbao, Yin, Suotang, Jia, Frank K, Tittel   +11 more
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Comparison of Quartz-enhanced Photoacoustic Spectroscopy and Conventional Photoacoustic Spectroscopy based Detectors

Lasers, Sources and Related Photonic Devices, 2010
Performance of quartz-enhanced photoacoustic spectroscopy and conventional photoacoustic spectroscopy based detectors applied to trace gas sensing was compared. Nitrogen with 10 ppmv of acetylene and a diode laser accessing 6529.17 cm−1 absorption line were used.
Lei Dong, Rafal Lewicki, Frank K. Tittel, Anatoliy A. Kosterev   +3 more
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Quartz-enhanced photoacoustic spectroscopy for gas sensing applications

, 2020
This chapter aims to introduce quartz-enhanced photoacoustic spectroscopy (QEPAS) for trace gas sensing. Starting from the basic physical principles, the QEPAS technique is described.
Vincenzo Spagnolo, Pietro Patimisco, Frank K. Tittel   +2 more
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Quartz enhanced photoacoustic spectroscopy for the detection of acetone

Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 2018
Quartz enhanced photoacoustic spectroscopy (QEPAS) is an extremely effective tool for the detection and quantification of trace gases, which offers advantages of fast response, high sensitivity and high resolution. In this paper, a gas sensor based on quartz-enhanced photoacoustic detection and an external cavity quantum cascade laser (ECQCL) was ...
Jinsong Li, Tianbo He, Sheng Zhou, Weikai Hu   +3 more
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Off-plane quartz-enhanced photoacoustic spectroscopy

Optics Letters
In this work, we developed off-plane quartz-enhanced photoacoustic spectroscopy (OP-QEPAS). In the OP-QEPAS the light beam went neither through the prong spacing of the quartz tuning fork (QTF) nor in the QTF plane. The light beam is in parallel with the QTF with an optimal distance, resulting in low background noise. A radial-cavity (RC) resonator was
Huijian Luo, Junming Li, Haohua Lv, Jiabao Xie, Chenglong Wang, Haoyang Lin, Ruobin Zhuang, Wenguo Zhu, Yongchun Zhong, Ruifeng Kan, Jianhui Yu, Huadan Zheng   +11 more
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