Open AccessCoherence effects in electromagnetically induced transparency in V-type systems of ^87Rb
Author(s) -
Hyun-Jong Kang,
HeungRyoul Noh
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.021762
Subject(s) - electromagnetically induced transparency , coherence (philosophical gambling strategy) , atomic coherence , physics , spectral line , optics , coherence time , atomic physics , coherence theory , spectroscopy , electromagnetically induced grating , coherence length , quantum mechanics , laser , wavelength , superconductivity , holographic grating , diffraction grating
We present a theoretical and experimental study of electromagnetically induced transparency (EIT) in V-type systems of 87 Rb atoms. We calculate accurate lineshapes of V-type EIT spectra by solving density matrix equations considering all the magnetic sublevels involved. The calculated spectra demonstrate consistency with the experimental results. We identify the coherence effect in the calculated EIT spectra, and determine that the coherence effect exists only in the cycling transition. We explain the reason for the suppression of the coherence effect in open transitions using an analytical calculation of the spectra for a simple V-type three-level atomic system.