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SPECTROSCOPY AND SPECTRAL ANALYSIS  2019, Vol. 39 Issue (06): 1970-1974    DOI: 10.3964/j.issn.1000-0593(2019)06-1970-05
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High Sensitive Photoacoustic Gas Sensor Based on Low Output Power Laser and Digital Lock-in Technology
LI Chun-guang1, 2, 4, LIN Jun2*, DONG Lei3*, WANG Yi-ding4
1. College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
2. College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130061, China
3. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
4. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China