Laser oscillation without population inversion in a sodium atomic beam

被引：286

作者：

Padmabandu, GG

Welch, GR

Shubin, IN

Fry, ES

Nikonov, DE

Lukin, MD

Scully, MO

机构：

[1] TEXAS A&M UNIV,DEPT PHYS,COLLEGE STN,TX 77843

[2] MAX PLANCK INST QUANTUM OPT,D-85748 GARCHING,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.76.2053

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Continuous wave (cw) amplification and laser oscillation without population inversion have been observed for the first time in a Lambda scheme within the sodium D-1 line. This is also the first demonstration in which the lasing medium was an atomic beam; this is an approach which, in addition to elucidating the physics, lays a foundation for extensions into the ultraviolet. Calculations using realistic atomic structure were critical to the choice of experimental approach. Observations agree with full density-matrix calculations and clearly show there was no population inversion.

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收藏

页码：2053 / 2056

页数：4

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