Frequency up-conversion He-Ne laser without inversion

被引：8
作者：
Ahufinger, V [1 ]
Shuker, R
Corbalán, R
机构：
[1] Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Spain
[2] Univ Hannover, Inst Theoret Phys, D-30167 Hannover, Germany
[3] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2005年 / 80卷 / 01期
关键词：
D O I：
10.1007/s00340-004-1694-0
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
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 (2s(2) <----> 2p(2) <----> 1s(3)) with a frequency upconversion 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 1s(3) and 1s(5) levels overcome a certain threshold.
引用
收藏
页码：67 / 72
页数：6
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