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Title: Simultaneous electromagnetically induced transparency for two circularly polarized lasers coupled to the same linearly polarized laser in a four-level atomic system in the W scheme

Abstract

Electromagnetic induced transparency (EIT) can be produced in a four-level atomic system in the W scheme using a linearly polarized optical field for simultaneously slowing down two {sigma}{sup +} and {sigma}{sup -} circularly polarized optical fields. This four-level atomic system can be set up with a |{sup 1}S{sub 0}> ground state and three Zeeman levels of the |{sup 1}P{sub 1}> excited state of any alkali-metal atom placed in a weak magnetic field. We apply our W scheme to ultracold magnesium atoms for neglecting the collisional dephasing. Atomic coherences are reported after solving a density matrix master equation including radiative relaxations from Zeeman states of the |{sup 1}P{sub 1}> multiplet to the |{sup 1}S{sub 0}> ground state. The EIT feature is analyzed using the transit time between the normal dispersive region and the EIT region. The evolution of the EIT feature with the variation of the coupling field is discussed using an intuitive dressed-state representation. We analyze the sensitivity of an EIT feature to pressure broadening of the excited Zeeman states.

Authors:
;  [1]
  1. Department of Physics, Lamar University, P.O. Box 10046, Beaumont, Texas 77710 (United States)
Publication Date:
OSTI Identifier:
21541361
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 83; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevA.83.033804; (c) 2011 American Institute of Physics; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ALKALI METALS; ATOMS; COUPLING; DENSITY MATRIX; FIELD THEORIES; LASER RADIATION; MAGNESIUM; MAGNETIC FIELDS; OPACITY; PHOTON BEAMS; POLARIZED BEAMS; RELAXATION; SENSITIVITY; SLOWING-DOWN; ZEEMAN EFFECT; ALKALINE EARTH METALS; BEAMS; ELECTROMAGNETIC RADIATION; ELEMENTS; MATRICES; METALS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS

Citation Formats

Bahrim, Cristian, and Nelson, Chris. Simultaneous electromagnetically induced transparency for two circularly polarized lasers coupled to the same linearly polarized laser in a four-level atomic system in the W scheme. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.83.033804.
Bahrim, Cristian, & Nelson, Chris. Simultaneous electromagnetically induced transparency for two circularly polarized lasers coupled to the same linearly polarized laser in a four-level atomic system in the W scheme. United States. doi:10.1103/PHYSREVA.83.033804.
Bahrim, Cristian, and Nelson, Chris. Tue . "Simultaneous electromagnetically induced transparency for two circularly polarized lasers coupled to the same linearly polarized laser in a four-level atomic system in the W scheme". United States. doi:10.1103/PHYSREVA.83.033804.
@article{osti_21541361,
title = {Simultaneous electromagnetically induced transparency for two circularly polarized lasers coupled to the same linearly polarized laser in a four-level atomic system in the W scheme},
author = {Bahrim, Cristian and Nelson, Chris},
abstractNote = {Electromagnetic induced transparency (EIT) can be produced in a four-level atomic system in the W scheme using a linearly polarized optical field for simultaneously slowing down two {sigma}{sup +} and {sigma}{sup -} circularly polarized optical fields. This four-level atomic system can be set up with a |{sup 1}S{sub 0}> ground state and three Zeeman levels of the |{sup 1}P{sub 1}> excited state of any alkali-metal atom placed in a weak magnetic field. We apply our W scheme to ultracold magnesium atoms for neglecting the collisional dephasing. Atomic coherences are reported after solving a density matrix master equation including radiative relaxations from Zeeman states of the |{sup 1}P{sub 1}> multiplet to the |{sup 1}S{sub 0}> ground state. The EIT feature is analyzed using the transit time between the normal dispersive region and the EIT region. The evolution of the EIT feature with the variation of the coupling field is discussed using an intuitive dressed-state representation. We analyze the sensitivity of an EIT feature to pressure broadening of the excited Zeeman states.},
doi = {10.1103/PHYSREVA.83.033804},
journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 83,
place = {United States},
year = {2011},
month = {3}
}