Polarization dependence of excitonic-polariton propagation in a GaAs quantum-well waveguide

Kensuke Ogawa, Toshio Katsuyama, and Hitoshi Nakamura
Phys. Rev. Lett. 64, 796 – Published 12 February 1990
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Abstract

Anisotropic propagation of excitonic polaritons in GaAs single-quantum-well waveguide structures is evidenced by means of time-of-flight measurements. This anisotropy suggests that the depolarization effect of two-dimensional excitons enhances the polariton propagation. The observed optical nonlinearity of the group velocity supports the existence of polaritons and reflects the effect of a polariton-polariton interaction on their propagation.

  • Received 10 October 1989

DOI:https://doi.org/10.1103/PhysRevLett.64.796

©1990 American Physical Society

Authors & Affiliations

Kensuke Ogawa, Toshio Katsuyama, and Hitoshi Nakamura

  • Central Research Laboratory, Hitachi, Limited, Kokubunji, Tokyo 185, Japan

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Issue

Vol. 64, Iss. 7 — 12 February 1990

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