Rabi oscillation damped by exciton leakage and Auger capture in quantum dots
Optics Letters, Vol. 30, Issue 23, pp. 3213-3215 (2005)
http://dx.doi.org/10.1364/OL.30.003213
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Abstract
The decoherence of Rabi oscillation (RO) caused by biexciton, population leakage to the wetting layer (WL), and Auger capture in semiconductor quantum dots is theoretically analyzed with multilevel optical Bloch equations. The corresponding effects on the quality factor of RO are also discussed. We have found that the biexciton effect is relatively trifling, as the pulse duration is longer than 5 ps. The population leakage to the WL leads to a decrease of the RO average even though the damping rate is similar to that observed in the experiment. Auger capture in quantum dots results in RO damping that is consistent with the experimental data, which implies that Auger capture is an important decoherence process in quantum dots.
© 2005 Optical Society of America
OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(270.1670) Quantum optics : Coherent optical effects
ToC Category:
Quantum Optics
Citation
H. J. Zhou, S. D. Liu, M. T. Cheng, Q. Q. Wang, Y. Y. Li, and Q. K. Xue, "Rabi oscillation damped by exciton leakage and Auger capture in quantum dots," Opt. Lett. 30, 3213-3215 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-23-3213
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