摘要
In the field of absorption spectroscopy,the multipass cell[MPC]is one of the key elements.It has the advantages of simple structure,easy adjustment,and high spectral coverage,which is an effective way to improve the detection sensitivity of gas sensing systems such as tunable diode laser absorption spectroscopy.This invited paper summarizes the design theory and the research results of some mainstream types of MPCs based on two mirrors and more than two mirrors in recent years,and briefly introduces the application of some processed products.The design theory of modified ABCD matrix and vector reflection principle are explained in detail.Finally,trends in its development are predicted.
作者
刘亚辉
马欲飞
Yahui Liu;Yufei Ma(National Key Laboratory of Science and Technology on Tunable Laser,Harbin Institute of Technology,Harbin 150001,China)
基金
supported by the National Natural Science Foundation of China(Nos.62275065,62022032,and 61875047)
Natural Science Foundation of Heilongjiang Province of China(No.YQ2019F006)。
