11 January 2005 Generation of a dark hollow beam by a four-step phase plate and its application for manipulating cold atoms
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Abstract
In this paper, we propose a new scheme to generate a dark hollow-beam, which includes dark hollow-beam optical pipe and hollow-beam optical dipole trap, through using a system composed of a four steps phase plate and a spherical lens. This kind of light beam can be used to focus, guide and trap the cold atom. We also calculate the intensity distributing and characteristic parameters of a dark hollow-beam and the optical dipole potential which manipulate the cold atoms of 85Rb. At last, we analyze and demonstrate the experimental feasibility of the scheme.
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Xianming Ji, Renwang Mu, Jinghuai Fang, Shuwu Xu, Liangkai Han, "Generation of a dark hollow beam by a four-step phase plate and its application for manipulating cold atoms", Proc. SPIE 5631, Quantum Optics and Applications in Computing and Communications II, (11 January 2005); doi: 10.1117/12.577724; https://doi.org/10.1117/12.577724
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