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采用多喷嘴阵列产生高亮度高次谐波

Bright High-Order Harmonic Generation via Multi-Jet Arrays

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摘要

采用长焦距透镜与连续介质气体靶是目前高亮度高次谐波产生实验中谐波产率较高的方案, 在长焦距透镜方案中进一步探索使用准相位匹配技术, 有望在连续介质靶的基础上进一步提高高次谐波信号的强度。根据准相位匹配技术, 设计了一种多喷嘴阵列气体靶, 通过模拟计算的方法, 对比传统连续介质气体靶与多喷嘴气体靶这两种方案, 从理论上证实多喷嘴气体靶可以实现谐波信号强度的进一步提升。

Abstract

Combining a long-focus lens with a continuous medium gas target is a scheme with high conversion efficiency in high-order harmonic generation. The quasi-phase matching technique is applied to this scheme. It is expected to further improve high-order harmonic signal intensity. A multi-jet arrays gas target is applied to the generation of high-order harmonic, which is designed according to the quasi-phase matching technique. It is theoretically confirmed by numerical simulation that the multi-jet arrays gas target could improve the harmonic signal intensity compared with traditional continuous medium gas target.

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中图分类号:O437.1

DOI:10.3788/cjl201744.1001002

所属栏目:激光物理

基金项目:国家自然科学基金(11127901, 11227902, 11574332, 1151101142)、中国科学院战略性先导科技专项(XDB16)、中国科学院青年创新促进会(2011189)

收稿日期:2017-05-02

修改稿日期:2017-05-25

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张路遥:上海大学理学院, 上海 200444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
戴 晔:上海大学理学院, 上海 200444
郑颖辉: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
曾志男: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
李儒新: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

联系人作者:张路遥(shuzhangly@163.com)

备注:张路遥(1992-), 男, 硕士研究生, 主要从事高次谐波方面的研究。

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引用该论文

Zhang Luyao,Dai Ye,Zheng Yinghui,Zeng Zhinan,Li Ruxin. Bright High-Order Harmonic Generation via Multi-Jet Arrays[J]. Chinese Journal of Lasers, 2017, 44(10): 1001002

张路遥,戴 晔,郑颖辉,曾志男,李儒新. 采用多喷嘴阵列产生高亮度高次谐波[J]. 中国激光, 2017, 44(10): 1001002

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