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Laser interferometry based on atomic coherence

Bhattarai, M and Khan, S and Natarajan, V and Pandey, K (2021) Laser interferometry based on atomic coherence. In: Journal of Physics B: Atomic, Molecular and Optical Physics, 54 (7).

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Official URL: https://doi.org/10.1088/1361-6455/abe67c


We demonstrate laser interferometry based on phase difference between the two arms of an interferometer. The experiments are done with a Cs atomic vapor cell at room temperature and use atomic coherence. The interference can be tuned from constructive to destructive by tuning the relative phase between the two arms. It is similar to the Michelson interferometer, but differs in the important aspect of allowing interference when the polarizations in the two arms are orthogonal. This would be a novel method for interfering two independent lasers, which can even allow interfering two independent lasers of completely different wavelengths. © 2021 Institute of Physics Publishing. All rights reserved.

Item Type: Journal Article
Publication: Journal of Physics B: Atomic, Molecular and Optical Physics
Publisher: IOP Publishing Ltd
Additional Information: The copyright for this article belongs to IOP Publishing Ltd
Keywords: Atoms; Laser interferometry; Michelson interferometers, Atomic coherence; Atomic vapor cell; Phase difference; Relative phase, Atom lasers
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 22 Jul 2021 11:30
Last Modified: 22 Jul 2021 11:30
URI: http://eprints.iisc.ac.in/id/eprint/68876

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