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物理学报. 1997, 46(2): 300-305.
doi: 10.7498/aps.46.300.
在Ne的第一共振态以下通过四波和频产生可调谐VUV相干辐射
- 收稿日期: 1996-03-18
- 刊出日期: 1997-02-15
摘要: 利用一台染料激光器的输出作为基波，通过非共振四波和频过程在Ne的第一共振态以下产生了116.6—119.2nm的可调谐VUV相干辐射．这是利用低阶的非线性光学过程在Ne的正色散区产生可调谐的VUV相干辐射．由于在这一波段Ne的色散很小，使得四波和频过程具有较高的转换效率．实验观察到在较小介质密度下，四波和频信号与介质密度的平方成正比．如果提高Ne的介质密度，估计和频过程的转换效率可以提高两个数量级
English Abstract
THE GENERATION OF TUNABLE VUV COHERENT RADIATION BY FOUR-WAVE SUM-MIXING BELOW THE FIRST RESONANCE LEVEL OF Ne
- Received Date:
18 March 1996
- Published Online:
15 February 1997
Abstract: Using the output of one dye laser as the fundamental wave,we have generated tunable VUV coherent radiation from 116.6nm through 119.2nm by nonresonant four-wave sum-mixing process below the first resonance level of Ne.The conversion efficiency was found to be comparatively high because of the very small dispersion in this range.We found that the four-wave sum-mixing output was proportional to the square of the gas density we offered.If we increase the gas density of Ne,the conversion efficiency is estimated to be improved by two orders.
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