Observation of optical Rabi oscillations in transmission signal of atomic vapor under continuous-wave laser excitation

We have studied the temporal behavior of the atomic absorption signal under resonant excitation with a continuous-wave laser radiation. Measurements done for D2 line of 85Rb with ~ 1 ns temporal resolution have shown irregular oscillatory behavior of the transmission signal, which becomes well prono...

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Bibliographic Details
Published inarXiv.org
Main Authors Papoyan, Aram, Shmavonyan, Svetlana
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 04.08.2020
Subjects
Continuous wave lasers
Excitation
Fast Fourier transformations
Fourier transforms
Lasers
Physics - Atomic Physics
Rabi frequency
Temporal resolution
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Summary:We have studied the temporal behavior of the atomic absorption signal under resonant excitation with a continuous-wave laser radiation. Measurements done for D2 line of 85Rb with ~ 1 ns temporal resolution have shown irregular oscillatory behavior of the transmission signal, which becomes well pronounced for high laser power, and disappears when the laser is tuned off-resonance. Application of the fast Fourier transform analysis of the transmission signal reveals power-dependent frequency peaks, which are shown to be associated with Rabi frequency. Possible linkage of the observed results with the phase-to-amplitude noise conversion caused by the the phase fluctuations of laser field is discussed.
ISSN:2331-8422
DOI:10.48550/arxiv.2007.00952