Measurement of force-assisted population accumulation in dark states

被引：5
|
作者：
Widmer, M [1 ]
Bellanca, MJ [1 ]
Buell, W [1 ]
Metcalf, H [1 ]
Doery, M [1 ]
Vredenbregt, E [1 ]
机构：
[1] EINDHOVEN UNIV TECHNOL,DEPT PHYS,5600 MB EINDHOVEN,NETHERLANDS
来源：
OPTICS LETTERS | 1996年 / 21卷 / 08期
关键词：
D O I：
10.1364/OL.21.000606
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Atoms can be accumulated by velocity-selective coherent population trapping (VSCPT) in dark states of very highly monovelocity, resulting in very narrow distributions. The optical pumping process that permits the population accumulation proceeds by random walk in momentum space and is of limited efficiency. Several authors have predicted that damping forces can enhance VSCPT in carefully chosen laser fields. We present corroboration of this idea with measurements showing increased efficiency for VSCPT. (C) 1996 Optical Society of America.
引用
收藏
页码：606 / 608
页数：3
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