ONE-DIMENSIONAL LASER COOLING WITH LINEARLY POLARIZED FIELDS

被引:28
作者
GUO, J [1 ]
BERMAN, PR [1 ]
机构
[1] NYU, DEPT PHYS, NEW YORK, NY 10003 USA
来源
PHYSICAL REVIEW A | 1993年 / 48卷 / 04期
关键词
D O I
10.1103/PhysRevA.48.3225
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present a calculation of one-dimensional sub-Doppler cooling of neutral atoms, in which the atomic center-of-mass motion is quantized. The cooling field consists of a pair of counterpropagating, linearly polarized laser beams, with their polarizaton vectors at an angle theta with respect to each other. The steady-state atomic density matrix is analyzed as a function of theta. It is shown that, depending on the internal atomic level scheme, the equilibrium population of the quantized ground state of atomic center-of-mass motion can either increase or decrease significantly when theta is reduced from pi/2. These effects are interpreted based on the spatial localization of atoms in the light-induced potential wells.
引用
收藏
页码:3225 / 3232
页数:8
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