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Quantum memory and all-optical switching in positive charged quantum dots via Zeeman coherent oscillations

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Antón Revilla, Miguel Ángel and Carreño Sánchez, Fernando (2010) Quantum memory and all-optical switching in positive charged quantum dots via Zeeman coherent oscillations. Journal of Optics, 12 . 13 p.. ISSN 2040-8978

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Official URL: http://dx.doi.org/10.1088/2040-8978/12/10/104006




Abstract

Linear and nonlinear properties in an ensemble of single-hole spin InGaAs/GaAs quantum dots are theoretically studied. The application of a DC magnetic field in the semiconductor growth plane induces a Zeeman splitting of the hole levels which can be modeled like a four-level atom in the X-type configuration. All-optical and magneto-optical switching of a weak probe field are shown to be feasible in this system either by changing the Rabi frequency of an auxiliary control field or by changing the magnitude of the external magnetic field. We analyze the feasibility to store and release a weak pulse from the medium resulting from Zeeman coherent oscillations, thus the system is expected to be useful to develop a variable semiconductor optical buffer.


Item Type:Article
Uncontrolled Keywords:Coherent Zeeman oscillations; All-optical switch, Slow light; Dark-state polariton
Subjects:Sciences > Physics > Electromagnetism
Sciences > Physics > Optics
Sciences > Physics > Quantum theory
Medical sciences > Optics > Nonlinear optics
ID Code:47731
Deposited On:31 May 2018 07:17
Last Modified:31 May 2018 11:37

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