中国激光, 2004, 31 (s1): 161, 网络出版: 2013-01-29
静态气体相位匹配高次谐波研究
Phase-Matched High-Order Harmonic Generation in Static Gas
非线性光学: 高次谐波 相位匹配 频谱特性 空间分布 nonlinear optics high-order harmonic generation phase-matched spectral properties
摘要
对低能量飞秒激光脉冲和静态氩气相互作用下产生相位匹配高次谐波进行了实验研究.在激光脉冲能量为0.55 mJ的情况下.获得了转化效率1×10-7的相位匹配27次谐波.分析了高次谐波光谱在不同氩气压强下的蓝移和展宽特性.并且观察到高次谐波的源尺寸在相位匹配条件下明显增大现象.
Abstract
Phase-matched high-order harmonic generation in Ar gas-filled cell was investigated experimentally. The phase-matched 27th order harmonic driven by a commercially available solid-state femtosecond laser system at 0.55 mJ/pulse energy level and 1 kHz repetition rate was obtained. Spectral blueshift and broadening of high-order harmonics were analyzed. Moreover, the source size of high-order harmonic generation was enhanced under the phase-matching condition.
谢新华, 曾志男, 李儒新, 陈戌, 徐至展. 静态气体相位匹配高次谐波研究[J]. 中国激光, 2004, 31(s1): 161. XIE Xin-hua, ZENG Zhi-nan, LI Ru-xin, CHEN Shu, XU Zhi-zhan. Phase-Matched High-Order Harmonic Generation in Static Gas[J]. Chinese Journal of Lasers, 2004, 31(s1): 161.
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