Four-wave mixing theory for two-photon generation of excitons in thin films of cuprous oxide

I. V Beloussov; J. B. Ketterson; Y. Sun

doi:10.1117/12.881329

6 January 2011 Four-wave mixing theory for two-photon generation of excitons in thin films of cuprous oxide

I. V Beloussov, J. B. Ketterson, Y. Sun

Proceedings Volume 7993, ICONO 2010: International Conference on Coherent and Nonlinear Optics; 79930E (2011) https://doi.org/10.1117/12.881329
Event: International Conference on Coherent and Nonlinear Optics (ICONO 2010) and International Conference on Lasers, Applications and Technologies (LAT 2010), 2010, Kazan, Russian Federation

Abstract

We propose and theoretically investigate a two-photon four wave mixing experiment to probe for BEC of excitons in Cu₂O thin films. A relatively simple set of equations describing the dynamics of the system is obtained for a particular configuration of the exciting beams, and numerical and approximate analytical solutions are found. The resulting phase-conjugated signal vs. the delay time between the pump and probe pulses yields a direct measure of the time evolution of the exciton condensate, and exhibit peaks when the film thickness is a multiple of a half wavelength of light.

Citation Download Citation

I. V Beloussov, J. B. Ketterson, and Y. Sun "Four-wave mixing theory for two-photon generation of excitons in thin films of cuprous oxide", Proc. SPIE 7993, ICONO 2010: International Conference on Coherent and Nonlinear Optics, 79930E (6 January 2011); https://doi.org/10.1117/12.881329

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