Conversion between electromagnetically induced absorption and transparency in a four-level system

D. Sarkisyan, A. Sargsyan, A. D. Wilson-Gordon, S. Cartaleva

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A narrowband R-type resonance is formed in a Λ-system, on the D1 line of Rb atomic vapor using two continuous diode lasers with λ=795 nm. A 8mm- long cell filled with the Rb vapor and 20 Torr neon gas has been used. We have shown that use of an additional (3rd) laser which is resonant with the Rb D2 line (λ=780 nm) makes it possible to control the amplitude and sign of the R -type resonance, i.e. to convert a resonance which demonstrates increase in absorption into one which demonstrates reduction in absorption. The good signal/noise ratio of the observed resonance allows us to follow its behavior in an applied magnetic field from several gauss to several hundred gauss. A description in terms of double-Λ systems allows us to explain the experimental results in a simple manner.

Original languageEnglish
Title of host publication18th International School on Quantum Electronics
Subtitle of host publicationLaser Physics and Applications
EditorsAlexandros Serafetinides, Sanka Gateva, Tanja Dreischuh
PublisherSPIE
ISBN (Electronic)9781628415636
DOIs
StatePublished - 2015
Event18th International School on Quantum Electronics: Laser Physics and Applications, ISQE 2014 - Sozopol, Bulgaria
Duration: 29 Sep 20143 Oct 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9447
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference18th International School on Quantum Electronics: Laser Physics and Applications, ISQE 2014
Country/TerritoryBulgaria
CitySozopol
Period29/09/143/10/14

Bibliographical note

Publisher Copyright:
© 2015 SPIE.

Keywords

  • atomic vapor
  • diode-lasers
  • laser spectroscopy
  • magnetic field
  • narrow optical resonances

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