Wen-Xing Yang et al 2009 J. Phys. B: At. Mol. Opt. Phys. 42 225501 doi:10.1088/0953-4075/42/22/225501
Wen-Xing Yang1,2, Ai-Xi Chen3, Ting-Ting Zha1 and Ray-Kuang Lee2
Show affiliationsWe investigate the probe absorption properties in an asymmetric coupled double quantum-well structure for both the transient and steady-state processes. Beyond the rotating-wave approximation, we directly simulate the transient dynamics with the density-matrix equations. The probe absorption is found to be completely eliminated under the condition of two-photon resonance, without requiring the one-photon resonance condition. More interestingly, our results show that the absorption properties can be tuned by changing the tunnelling barrier.
Issue 22 (28 November 2009)
Received 16 June 2009, in final form 5 October 2009
Published 5 November 2009
Wen-Xing Yang et al 2009 J. Phys. B: At. Mol. Opt. Phys. 42 225501
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