AZIMUTHAL DOPPLER-SHIFT IN LIGHT-BEAMS WITH ORBITAL ANGULAR-MOMENTUM

被引：104

作者：

ALLEN, L ^{[1
]}

BABIKER, M ^{[1
]}

POWER, WL ^{[1
]}

机构：

[1] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,BLACKETT LAB,OPT SECT,LONDON SW7 2BZ,ENGLAND

来源：

OPTICS COMMUNICATIONS | 1994年 / 112卷 / 3-4期

关键词：

Atoms - Doppler effect - Frequencies - Quantum optics - Resonance;

D O I：

10.1016/0030-4018(94)00484-6

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show that an atom moving in a light beam with orbital angular momentum experiences an azimuthal shift in the resonant frequency in addition to the usual axial Doppler and recoil shifts. For a Laguerre-Gaussian beam characterised by an orbital angular momentum quantum number l, the shift is lV(phi)/r where r is the radial atomic position and V-phi the azimuthal component of velocity. The predicted shift could play a significant role in interactions between atoms and standing light fields in cooling experiments as well as in ion traps.

引用

页码：141 / 144

页数：4