Development and Application of Cavity-based Absorption Spectroscopy in Atmospheric Chemistry:Recent Progress  

作　　者：Weixiong ZHAO Nana YANG Renzhi HU Bo FANG Jiacheng ZHOU Chuan LIN Feihu CHENG Pinhua XIE Weijun ZHANG 

机构地区：[1]Anhui Institute of Optics and Fine Mechanics,HFIPS,Chinese Academy of Sciences,Hefei 230031,China [2]School of Environmental Science and Optoelectronic Technology,University of Science and Technology of China,Hefei 230026,China [3]Institute of Environment,Hefei Comprehensive National Science Center,Hefei 230601,China

出　　处：《Advances in Atmospheric Sciences》2025年第4期605-622,共18页大气科学进展(英文版)

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.U21A2028,42022051,62275250,42030609,41627810,91644107,and 91544228).

摘　　要：Atmospheric chemistry research and atmospheric measurement techniques have mutually promoted each other and developed rapidly in China in recent years.Cavity-based absorption spectroscopy,which uses a high-finesse cavity to achieve very long absorption path-length,thereby achieving ultra-high detection sensitivity,plays an extremely important role in atmospheric chemistry research.Based on the Beer–Lambert law,this technology has the unique advantages of being non-destructive,chemical-free,and highly selective.It does not require any sample preparation and can quantitatively analyze atmospheric trace gases in real time and in situ.In this paper,we review the following:(1)key technological advances in different cavity-based absorption spectroscopy techniques,including cavity ring-down spectroscopy,cavityenhanced absorption spectroscopy,cavity attenuated phase shift spectroscopy,and their extensions;and(2)applications of these techniques in the detection of atmospheric reactive species,such as total peroxy radical,formaldehyde,and reactive nitrogen(e.g.,NOx,HONO,peroxy nitrates,and alkyl nitrates).The review systematically introduces cavity-based absorption spectroscopy techniques and their applications in atmospheric chemistry,which will help promote further communication and cooperation in the fields of laser spectroscopy and atmospheric chemistry.

关 键 词：cavity-based absorption spectroscopy atmospheric chemistry atmospheric reactive species 

分 类 号：P402[天文地球—大气物理学与大气环境]