Phase Coherent Photorefractivity in ZnSe Single Quantum Wells

Wagner, H., Tripathy, Snehasis ORCID: https://orcid.org/0000-0003-1632-7668, Tranitz, H.-P. and Langbein, Wolfgang Werner ORCID: https://orcid.org/0000-0001-9786-1023 2005. Phase Coherent Photorefractivity in ZnSe Single Quantum Wells. Physical Review Letters 94 (14) , 147402. 10.1103/PhysRevLett.94.147402

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Abstract

We observe an efficient phase coherent photorefractive effect in ZnSe single quantum wells for ultrashort light pulses resonant to the excitonic transition. The effect is attributed to the formation of an electron grating in the quantum well induced by the interference of coherent excitons that preserve phase and polarization of the incident light fields. All characteristic features of the diffracted signal are explained and reproduced by numerical calculations that are based on the optical Bloch equations for a three-level system.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	American Physical Society
ISSN:	0031-9007
Last Modified:	24 Oct 2022 11:38
URI:	https://orca.cardiff.ac.uk/id/eprint/48832

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