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I will review recent progresses on the realization and application of electromagnetically induced transparency in semiconductors. The emphasis will be on the use of electron spin coherence in quantum well structures. Electromagnetically induced transparency (EIT) exploits destructive quantum interference induced by a nonradiative quantum coherence to make an otherwise opaque medium transparent. EIT...
Coherent Zeeman resonance from electron spin coherence is demonstrated in a Lambda-type three-level system, coupling electron spin states via trions. The use of a mixed-type quantum well allows the optical control of electron densities.
We report frequency-resolved measurements of electron spin coherence in a (110) GaAs single quantum well waveguide inferred from the linewidth of an electromagnetically-induced resonance. With spectral resolution, asymmetry in the resonance lineshape is observed.
Experimental studies of nearly degenerate time-resolved Faraday rotation (TRFR) in GaAs and InGaAs quantum wells show that many body interactions between excitons strongly modify the TRFR response from the electron spin coherence.
We report recent progresses on experimental demonstration of electromagnetically induced transparency from exciton spin coherence and from electron spin coherence in semiconductor quantum wells
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