3RD-HARMONIC GENERATION IN ARGON, KRYPTON, AND XENON - BANDWIDTH LIMITATIONS IN THE VICINITY OF LYMAN-ALPHA

被引:168
作者
MAHON, R
MCILRATH, TJ
MYERSCOUGH, VP
KOOPMAN, DW
机构
[1] Institute for Physical Science and Technology, University of Maryland, College Park
关键词
D O I
10.1109/JQE.1979.1070036
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Using experimentally determined oscillator strengths and photoionization CrossSectional data, we compute the dispersion characteristics of Ax, Kr, and Xe up to their first ionization levels and detex-mine the spectral legions in the VUV where these gases exhibit negative dispersion and so can be efficiently used for frequency tripling. We then investigate the bandwidths over which efficient tripling can be achieved in phase-matched gas mixtures. The bandwidth is limited by the rapidly varying dispersion in the vicinity of resonance transitions in the gases. In particular, we look at the case of frequency tripling 3647 a radiation to 1215.7 a (hydrogen Lyman-α) and show, that for fundamental wavelength bandwidths as narrow as 1 a, the rapid change in refractive index with wavelength can preclude phase matching over the entire bandwidth of the radiation. Copyright © 1979 by The Institute of Electrical and Electronics Engineers, Inc.
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收藏
页码:444 / 451
页数:8
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