基于法布里-珀罗干涉仪的窄带宽激光脉冲产生及其应用  

Generation and application of narrow-band laser pulse based on Fabry-Perot interferometer

作　　者：杨域博 陆浩宇 张文凯 YANG Yu-bo;LU Hao-yu;ZHANG Wen-kai(Department of Physics, Beijing Normal University, Beijing 100875, China)

机构地区：[1]北京师范大学物理学系应用光学北京市重点实验室,北京100875

出　　处：《物理实验》2021年第4期17-21,44,共6页Physics Experimentation

基　　金：国家自然科学基金面上项目(No.21773012)。

摘　　要：法布里-珀罗干涉仪的原理是多光束干涉,由于干涉仪内部是谐振腔结构(F-P腔),当入射光的频率满足共振条件时,透射频谱会出现很高的峰值.利用这一特性对输入的光信号进行频率筛选,从而得到理想的窄带宽脉冲信号.本文简要介绍了F-P腔的基本原理,以及利用F-P干涉仪产生窄带宽脉冲的过程,并介绍了该窄带宽脉冲在飞秒受激拉曼光谱、和频振动光谱和二维红外光谱等前沿光谱技术中的应用.The main principle of Fabry-Perot interferometer is multi-beam interference.Due to its resonant cavity structure(F-P cavity),when the frequency of the incident llght meets the resonance conditions,the transmission spectrum will have an extremely high peak.The resonant cavity can be used to screening the input frequency and obtain an ideal narrow-band pulse.This article briefly introduced the basic principles of F-P cavity and the basic method of using F-P interferometer to generate narrow-band pulse,and introduced the application of this narrow-band pulse in femtosecond stimulated Raman spectroscopy(FSRS),sum frequency spectroscopy(SFG),two-dimensional infrared spectroscopy(2D-IR)and other state of the art spectroscopy technologies.

关 键 词：法布里-珀罗干涉仪 窄带宽脉冲 飞秒受激拉曼光谱 和频振动光谱 二维红外光谱 

分 类 号：O433[机械工程—光学工程] O435[理学—光学]