载波包络相位稳定的6 fs超快强激光脉冲及其在高次谐波产生中的应用  

Generation of Carrier-Envelope-Phase Stabilized 6 fs Ultrashort Pulses and Their Application in High-Order Harmonic Generation

作　　者：彭滟[1] 徐晗[1] 杨旋[1] 吴昆[1] 蔡华[1] 曾和平[1] 郑颖辉[2] 熊辉[2] 曾志男[2] 李儒新[2] 徐至展[2] 

机构地区：[1]华东师范大学物理系光谱学与波谱学教育部重点实验室,上海200062 [2]中国科学院上海光学精密机械研究所强场激光物理国家重点实验室,上海201800

出　　处：《中国激光》2006年第11期1486-1489,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金(60478011;10525416);上海市科学技术委员会基础研究重大项目(04dz14001)资助课题

摘　　要：脉冲宽度40 fs,功率1.1 W的载波包络相位(CEP)稳定的飞秒激光脉冲在充氩气的空芯光纤内由于自相位调制频谱展宽,通过啁啾镜和斜劈补偿色散,最终可获得脉冲宽度为6 fs的载波包络相位稳定的强激光脉冲.将之应用到高次谐波实验中得到了脉冲宽度为500 as的单个阿秒脉冲.Carrier-envelope phase （CEP） stabilized 6 fs ultrashort intense pulses were generated by focusing 40 fs （full width at half maximam （FWHM）） 1. 1 mJ （pulse energy） intense laser pulses into the hollow fiber filled with argon gas. The input pulse was broadened by self-phase modulation and the spectrum was compressed by chirped mirrors and two titled quartz thin wedges. We applied the compressed pulse to the experiment of high-order harmonic generation and found it supporting a transform-limited 500 attosecond single pulse in time domain.

关 键 词：超快光学 6 fs脉冲 频谱展宽 载波包络相位稳定 高次谐波 

分 类 号：O437.1[机械工程—光学工程]