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Title: Phase-dependent high refractive index without absorption in a four-level inverted-Y atomic system

We consider a closed four-level inverted-Y system in the presence and the absence of a microwave field. It is found that due to the quantum coherence between the two lower levels, either induced by the spontaneous decay or by the microwave field, the refraction – absorption properties of the system can be modulated by controlling the relative phase of the applied fields in both driven ways. In particular, by properly setting the values of the relative phase, the desirable high index of refraction without absorption can be achieved. (nonlinear optical phenomena)
Authors:
;  [1] ;  [2] ;  [3]
  1. College of Physics and Electronic Engineering, Yibin University, Yibin 644000 (China)
  2. College of Mining and Safety Engineering, Yibin University, Yibin 644000 (China)
  3. Computational Physics Key Laboratory of Sichuan Province, Yibin University, Yibin 644000 (China)
Publication Date:
OSTI Identifier:
22395792
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 45; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION; MICROWAVE RADIATION; NONLINEAR PROBLEMS; REFRACTION; REFRACTIVE INDEX