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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 8 — Aug. 1, 2013
  • pp: 2301–2305

Magnetic-field-induced absorption with sub-milligauss spectral width in paraffin-coated rubidium vapor cell

Hyun Joon Lee and Han Seb Moon  »View Author Affiliations


JOSA B, Vol. 30, Issue 8, pp. 2301-2305 (2013)
http://dx.doi.org/10.1364/JOSAB.30.002301


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Abstract

We investigated the switching between the transmittance and absorption of the 5S1/2(F=2)5P1/2(F=1) transition of Rb87 in a paraffin-coated Rb vapor cell in the Hanle configuration. When the laser polarization was changed from linear to circular, the coherent population trapping (CPT) spectrum, with a spectral width of 0.12 mG due to the Ramsey effect, transformed into a narrow absorption spectrum with a sub-milligauss spectral width of 0.2 mG. The CPT and narrow absorption spectra were numerically calculated for both polarizations by considering the degenerate magnetic sublevels of the 5S1/25P1/2 transition in the antirelaxation-coated atomic vapor cell. This narrow absorption spectrum was revealed to be magnetic-field-induced absorption due to the residual transverse magnetic field and preservation time of the ground-state coherent spin states.

© 2013 Optical Society of America

OCIS Codes
(020.1670) Atomic and molecular physics : Coherent optical effects
(020.3690) Atomic and molecular physics : Line shapes and shifts
(020.4180) Atomic and molecular physics : Multiphoton processes
(300.6210) Spectroscopy : Spectroscopy, atomic

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: May 14, 2013
Revised Manuscript: July 18, 2013
Manuscript Accepted: July 18, 2013
Published: July 30, 2013

Citation
Hyun Joon Lee and Han Seb Moon, "Magnetic-field-induced absorption with sub-milligauss spectral width in paraffin-coated rubidium vapor cell," J. Opt. Soc. Am. B 30, 2301-2305 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-8-2301


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