Journal
OPTICS COMMUNICATIONS
Volume 291, Issue -, Pages 253-258Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2012.11.040
Keywords
Double electromagnetically induced; transparency; Classical analog; Coupled harmonic oscillators; Coupled RLC circuits
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Funding
- NSF-China [10874043, 11174080, 11105052]
- Open Fund from the State Key Laboratory of Precision Spectroscopy, ECNU
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Double electromagnetically induced transparency (DEIT) in a four-level atomic system with tripod-type energy-level configuration is modeled by using two classical systems. The first is a set of three coupled harmonic oscillators subject to frictional forces and external drives and the second is a set of three coupled RLC circuits with electric resistors and alternating voltage sources. It is shown that both of the two classical systems have absorption spectra of DEIT similar to that of the four-level tripod-type atomic system. These classical analogies provide simple and intuitive physical description of quantum interference processes and can be used to illustrate experimental observations of the DEIT in quantum systems. (c) 2012 Elsevier B.V. All rights reserved.
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