Manipulation of slow light with orbital angular momentum in cold atomic gases

被引：0
作者：
J. Ruseckas
A. Mekys
G. Juzeliūnas
机构：
[1] Institute of Theoretical Physics and Astronomy of Vilnius University,Department of Physics and Technology
[2] Vilnius Pedagogical University,undefined
来源：
Optics and Spectroscopy | 2010年 / 108卷
关键词：
Vortex; Probe Beam; Orbital Angular Momentum; Rabi Frequency; Electromagnetically Induce Transparency;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We study the propagation of a weak pulse of slow light in a cloud of cold atoms controlled by two additional laser beams of larger intensity in a tripod configuration of the light-matter coupling. We consider a case where one of the control beams has an optical vortex and thus has a zero intensity at the center. The presence of the second control beams restores adiabaticity in the propagation of the probe beam. This makes it possible to exchange the optical vortex between the control and probe fields during the storage. We analyze conditions for the vortex of the control beam to be transferred efficiently to the restored probe beam.
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页码：438 / 445
页数：7
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