Design of NO2 photoacoustic sensor with high reflective mirror based on low power blue diode laser  

作　　者：Hua-Wei Jin Pin-Hua Xie Ren-Zhi Hu Chong-Chong Huang Chuan Lin Feng-Yang Wang 靳华伟;谢品华;胡仁志;黄崇崇;林川;王凤阳(Key Laboratory of Environmental Optics&Technology,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences(CAS),Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China;CAS Center for Excellence in Regional Atmospheric Environment,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361000,China;Institutes of Physical Science and Information Technology,Anhui University,Hefei 230601,China;University of Chinese Academy of Sciences,Beijing 100049,China;Anhui Key Laboratory of Mine Intelligent Equipment and Technology,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]Key Laboratory of Environmental Optics&Technology,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences(CAS),Hefei 230031,China [2]University of Science and Technology of China,Hefei 230026,China [3]CAS Center for Excellence in Regional Atmospheric Environment,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361000,China [4]Institutes of Physical Science and Information Technology,Anhui University,Hefei 230601,China [5]University of Chinese Academy of Sciences,Beijing 100049,China [6]Anhui Key Laboratory of Mine Intelligent Equipment and Technology,Anhui University of Science and Technology,Huainan 232001,China

出　　处：《Chinese Physics B》2020年第6期139-145,共7页中国物理B（英文版）

基　　金：National Natural Science Foundation of China(Grant Nos.91644107,61575206,51904009,and 41905130);National Key Research and Development Program of China(Grant Nos.2017YFC0209401,2017YFC0209403,and 2017YFC0209902);the Outstanding Young Talents Program of Anhui University,China(Grant No.gxyq2019022).

摘　　要：An NO2 photoacoustic sensor system with a high reflective mirror based on a low power blue diode laser is developed in this work. The excitation power is enhanced by increasing the number of reflections. Comparing with a traditional photoacoustic system, the pool constant is improved from 300.24(Pa·cm)/W to 1450.64(Pa·cm)/W, and the signal sensitivity of the photoacoustic sensor is increased from 0.016 μV/ppb to 0.2562 μV/ppb. The characteristics of temperature and humidity of the new photoacoustic sensor are also obtained, and the algorithm is adjusted to provide a quantitative response and drift of the resonance frequency. The results of this research provide a new method and concept for further developing the NO2 photoacoustic sensors.

关 键 词：NO2 photoacoustic sensor high reflective mirror blue diode laser 

分 类 号：TN248[电子电信—物理电子学] TP212[自动化与计算机技术—检测技术与自动化装置]