Implementation of a double-scanning technique for studies
of the Hanle effect in rubidium vapor |
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Authors: | A Atvars M Auzinsh E A Gazazyan A V Papoyan S V Shmavonyan |
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Institution: | 1.Department of Physics and Laser Center,University of Latvia,Riga,Latvia;2.Institute for Physical Research,Ashtarak,Armenia |
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Abstract: | We have studied the resonance fluorescence of a
room-temperature rubidium vapor exited to the atomic 5P3/2
state (D2 line) by powerful single-frequency cw laser radiation
(1.25 W/cm2) in the presence of a magnetic field. In these
studies, the slow, linear scanning of the laser frequency across the
hyperfine transitions of the D2 line is combined with a fast
linear scanning of the applied magnetic field, which allows us to
record frequency-dependent Hanle resonances from all the groups of
hyperfine transitions including V- and Λ-type systems.
Rate equations were used to simulate fluorescence signals for
85Rb due to circularly polarized exciting laser radiation with
different mean frequency values and laser intensity values. The
simulation show a dependence of the fluorescence on the magnetic
field. The Doppler effect was taken into account by averaging the
calculated signals over different velocity groups. Theoretical
calculations give a width of the signal peak in good agreement with
experiment. |
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Keywords: | |
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