TRANSIENT AND STEADY-STATE ABSORPTIONS OF A WEAK PROBE FIELD IN A COUPLED DOUBLE QUANTUM-WELL STRUCTURE

2009/07/20 by Wen‐Xing Yang, WEN-XING YANG, JIN XU +2
Physics and Astronomy · #Quantum optics and atomic interactions #Cold Atom Physics and Bose-Einstein Condensates #Atomic and Subatomic Physics Research

paper · doi:10.1142/s0217984909020370

Abstract

We propose and analyze an efficient scheme for suppressing the absorption of a weak probe field based on intersubband transitions in a four-level asymmetric coupled quantum well (CQW) driven coherently by a probe laser field and a control laser field. We study the steady-state process analytically and numerically, and our results show that the probe absorption can be completely eliminated under the condition of Raman resonance (i.e. two-photon detuning is zero). Besides, we can observe one transparency window without requiring one- or two-photon detuning to exactly vanish. This investigation may provide a possible scheme for EIT in solids by using the CQW.

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