Open AccessSlow light based on coherent hole-burning in a Doppler broadened three-level Λ-type atomic system
Author(s) -
Shang-qi Kuang,
Peng Du,
Ren-gan Wang,
Yun Jiang,
Jigang Gao
Publication year - 2008
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.16.011604
Subject(s) - doppler effect , optics , spectroscopy , doppler broadening , physics , group velocity , resonance (particle physics) , atomic physics , saturation (graph theory) , beam (structure) , spectral hole burning , atomic coherence , light beam , materials science , laser , spectral line , mathematics , quantum mechanics , astronomy , combinatorics
We show theoretically that the propagation of light can be slowed down considerably using the method of coherent hole-burning in a Doppler broadened three-level lambda-type atomic medium without the Doppler-free configurations. The reduction of group velocity of light pulse is achieved by the application of a saturating beam and a strong coupling beam which produce a narrow spectral hole-burning at resonance. We can obtain a larger group index than that using the method of saturation absorption spectroscopy in Doppler-broadened two-level atomic systems.