Phase shifting interferometry of cold atoms.

Opt Express

Department of Physics, National Chung Cheng University, Chia-Yi 621, Taiwan.

Published: February 2011

We propose a scheme to engage phase shifting interferometry on cold atomic samples and present the simulation results under several experimentally achievable conditions nowadays. This method allows far-detuning, low power probing, and is intrinsically nondestructive. This novel detection means yields image quality superior to the conventional phase contrast imaging at certain conditions and could be experimentally realized. Furthermore, the longitudinal resolution of imaging by this manner is mainly set by optical interference and can be better than the diffraction limit. This scheme also provides special advantages to diagnose the surface-trapped clouds, with which phase imaging on the fabricated wires and atoms altogether is possible as well.

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http://dx.doi.org/10.1364/OE.19.003730DOI Listing

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