A sulfur dioxide detection platform based on photoacoustic spectroscopy and a 266.22 nm high-power stabilized LD-pumped solid-state Q-switched laser

Xiaowen Shen; Yixin Zhang; Ruyue Cui; Donghe Tian; Ming Cheng; Pietro Patimisco; Angelo Sampaolo; Chaofeng Sun; Xukun Yin; Vincenzo Spagnolo; Lei Dong; Hongpeng Wu

doi:10.1016/j.pacs.2025.100702

Photoacoustics (Apr 2025)

A sulfur dioxide detection platform based on photoacoustic spectroscopy and a 266.22 nm high-power stabilized LD-pumped solid-state Q-switched laser

Xiaowen Shen,
Yixin Zhang,
Ruyue Cui,
Donghe Tian,
Ming Cheng,
Pietro Patimisco,
Angelo Sampaolo,
Chaofeng Sun,
Xukun Yin,
Vincenzo Spagnolo,
Lei Dong,
Hongpeng Wu

Affiliations

Xiaowen Shen: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China; Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, PR China
Yixin Zhang: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China; Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, PR China
Ruyue Cui: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China; Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, PR China
Donghe Tian: Changchun New Industries Optoelectronics Technology Co., Ltd, PR China
Ming Cheng: Changchun New Industries Optoelectronics Technology Co., Ltd, PR China
Pietro Patimisco: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China; PolySense Lab-Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy
Angelo Sampaolo: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China; PolySense Lab-Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy
Chaofeng Sun: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China; Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, PR China
Xukun Yin: Hangzhou Institute of Technology, Xidian University, Hangzhou 311231, PR China
Vincenzo Spagnolo: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China; PolySense Lab-Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy; Corresponding authors at: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China.
Lei Dong: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China; Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, PR China; PolySense Lab-Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy; Corresponding authors at: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China.
Hongpeng Wu: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China; Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, PR China; PolySense Lab-Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy; Corresponding authors at: State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, PR China.

DOI: https://doi.org/10.1016/j.pacs.2025.100702
Journal volume & issue: Vol. 42
p. 100702

Abstract

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A ppb-level sulfur dioxide (SO2) monitoring platform was developed by exploiting standard photoacoustic spectroscopy and a novel, highly stable UV laser. A 266.22 nm LD-pumped solid-state, acousto-optic modulator Q-switched laser with high beam quality (M2 =1.0275) and excellent output optical power stability (δPσ ˂ 1 % ∼24 h) was selected as light source of the photoacoustic sensor. The performance of the SO2 sensor was evaluated in terms of gas flow rate, pressure, and detection sensitivity. An ultimate detection limit of 3 ppb for SO2 detection in N2 was demonstrated with 1 s integration time, in laboratory environment. Continuous outdoor monitoring for five days verified the excellent stability and reliability of the reported SO2 photoacoustic sensor.

Published in Photoacoustics

ISSN: 2213-5979 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics: Acoustics. Sound; Science: Physics: Optics. Light
Website: https://www.sciencedirect.com/journal/photoacoustics

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