Wagner, H., Tripathy, Snehasis ![]() ![]() |
Official URL: http://dx.doi.org/10.1103/PhysRevLett.94.147402
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 |
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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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