Frequency up-conversion He-Ne laser without inversion

被引：0
|
作者：
V. Ahufinger
R. Shuker
R. Corbalán
机构：
[1] Universitat Autònoma de Barcelona,Departament de Física
[2] Universität Hannover,Institut für Theoretische Physik
[3] Ben Gurion University of the Negev,Department of Physics
来源：
Applied Physics B | 2005年 / 80卷
关键词：
Rabi Frequency; Population Inversion; Magnetic Sublevel; Atomic Coherence; Incoherent Pump;
D O I：
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中图分类号：
学科分类号：
摘要：
A scheme for obtaining up-conversion lasing without inversion in the visible range is proposed using a Doppler-broadened He-Ne mixture as active medium. We consider a cascade scheme (2s2↔2p2↔1s3) with a frequency up-conversion ratio of 1.91. The upper transition is inverted and driven by an external field and lasing without inversion occurs at 616.4 nm provided that the collisional decay rates of the 1s3 and 1s5 levels overcome a certain threshold.
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页码：67 / 72
页数：5
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