量子电子学报2025，Vol.42Issue(5)：641-651,11.DOI:10.3969/j.issn.1007-5461.2025.05.006
基于FTIR开放式多次反射式怀特池系统
An open multi-pass White cell system based on FTIR
摘要
Abstract
An open multi-pass White cell system with an effective optical path of 192 m was designed in this work.By means of design simulation and optimization of Zemax,and then coupling with a medium-resolution Fourier transform infrared spectrometer,a multi-pass open optical path FTIR system was constructed.The field monitoring results showed that the detection limits of the system for CH4,NO2,O3,SO2,HCHO and NH3 gas concentration are 38.01804 nmol/mol,23.77203 nmol/mol,2.78154 nmol/mol,28.08897 nmol/mol,6.10395 nmol/mol and 1.54374 nmol/mol respectively,confirming that this design significantly improves the effective absorption optical path and reduces the detection limit of the spectrometer,and enabling online monitoring of atmospheric composition in the order of nmol/mol concentration.The establishment of the system provides a new means for environmental science research and pollution gas emission monitoring.关键词
光谱学/傅里叶变换红外光谱仪/怀特池/检测下限/光程长Key words
spectroscopy/Fourier transform infrared spectrometer/White cell/detection limit/long optical path分类
信息技术与安全科学引用本文复制引用
陈威,徐亮,徐寒扬,徐睆垚,花谷彪..基于FTIR开放式多次反射式怀特池系统[J].量子电子学报,2025,42(5):641-651,11.基金项目
中国科学院合肥研究院院长基金(YZJJ202209-TS),安徽省重点研究与开发计划(2022m07020009),国家自然科学基金(52027804) （YZJJ202209-TS）
