Nondestructive spatial heterodyne imaging of cold atoms
Optics Letters, Vol. 26, Issue 3, pp. 137-139 (2001)
http://dx.doi.org/10.1364/OL.26.000137
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Abstract
We demonstrate a new method for nondestructive imaging of laser-cooled atoms. This spatial heterodyne technique forms a phase image by interfering a strong reference laser beam with a weak probe beam that passes through the cold atom cloud. The figure of merit equals or exceeds that of phase-contrast imaging, and the technique can be used over a wider range of spatial scales. We show images of a dark-spot magneto-optic trap taken with imaging fluences as low as 61 pJ/cm2 at a detuning of 11Γ , resulting in 0.0004 photons scattered per atom.
© 2001 Optical Society of America
[Optical Society of America ]
OCIS Codes
(020.7010) Atomic and molecular physics : Laser trapping
(110.0110) Imaging systems : Imaging systems
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
Citation
S. Kadlecek, J. Sebby, R. Newell, and T. G. Walker, "Nondestructive spatial heterodyne imaging of cold atoms," Opt. Lett. 26, 137-139 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-3-137
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