Optical processes due to excitons and biexcitons in a microcavity embedded quantum well

A. I. Bobrysheva; M. I. Shmiglyuk; S. S. Russu

doi:10.1117/12.342368

15 March 1999 Optical processes due to excitons and biexcitons in a microcavity embedded quantum well

A. I. Bobrysheva, M. I. Shmiglyuk, S. S. Russu

Proceedings Volume 3734, ICONO '98: Fundamental Aspects of Laser-Matter Interaction and New Nonlinear Optical Materials and Physics of Low-Dimensional Structures; (1999) https://doi.org/10.1117/12.342368
Event: ICONO '98: Laser Spectroscopy and Optical Diagnostics: Novel Trends and Applications in Laser Chemistry, Biophysics, and Biomedicine, 1998, Moscow, Russian Federation

Abstract

A theoretical investigation of one- and two-photon absorption of weak probe light, respectively, by exciton- polaritons and biexcitons in the presence of a strong laser pulse in a planar microcavity embedded quantum well is presented. The strong pulse pumps the lower branch polariton into the biexciton and both states undergo the optical Stark splitting, which manifests oneself in the above mentioned absorption spectra. Besides the usual polariton gap an additional forbidden region for the pump and probe frequencies appear. This is due to the fact that the most part of the lower polariton branch is below the cavity photon mode energy. For this reasons the optical Stark effect manifests himself better in the biexciton two-photon absorption spectrum, while the renormalized lower branch polariton is not completely revealed in the one-photon absorption.

Citation Download Citation

A. I. Bobrysheva, M. I. Shmiglyuk, and S. S. Russu "Optical processes due to excitons and biexcitons in a microcavity embedded quantum well", Proc. SPIE 3734, ICONO '98: Fundamental Aspects of Laser-Matter Interaction and New Nonlinear Optical Materials and Physics of Low-Dimensional Structures, (15 March 1999); https://doi.org/10.1117/12.342368

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