The effect of gas pressure and slit width on the high order harmonic generation in helium-filled slab waveguide

The effect of gas pressure and slit width on the high order harmonic generation in helium-filled slab waveguide
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气体压力和狭缝宽度对充氦平板波导高次谐波产生的影响

DOI:
10.1016/j.ijleo.2016.10.091
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发表时间:
2017-02
期刊:
影响因子:
3.1
通讯作者:
Song HaiYing
Song HaiYing
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Gu Peng;Liu ShiBing;Song HaiYing

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测量了平板波导中高次谐波强度随气压的变化关系。根据效率增加与压力的二次关系,得到了61阶高次谐波的相位匹配。对于高次谐波,如H91,谐波强度随气压的周期性振荡被观察到。研究了平板波导缝隙宽度对高次谐波产生的影响。狭缝宽度对激光横模和相位失配条件的影响可以用来解释这种效应。
We measured the dependence of the intensity of high harmonics on the gas pressure in slab waveguide. The phase matching of 61st high harmonic was obtained according to the quadratic dependence of the increase in efficiency with pressure. For higher order harmonics such as H91, periodic oscillations of the harmonic intensity with gas pressure was observed. We also studied the effect of the slit width of the slab waveguide on the high harmonics generation. The influence of the slit width on laser transverse mode and phase mismatching conditions can be used to explain this effect.
充氦平板波导中高次谐波的产生
DOI: 10.1007/s00340-015-6301-z
发表时间: 2016-01
期刊: Applied Physics B: Lasers and Optics
影响因子: --
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