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Stimulated emission of exciton polaritons in a semiconductor microcavity

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3 Author(s)
Tassone, F. ; Edward L. Ginzton Lab., Stanford Univ., CA, USA ; Huang, R. ; Yamamoto, Y.

Summary form only given.We carried out experiments to prove the existence of large occupation numbers for microcavity polaritons. Two pump beams (from a coherent Ti:sapphire ring laser) at opposite and large angles (51) inject exciton populations at opposite in-plane momenta. Exciton-exciton collisions result in the creation of lower (LP) and upper (UP) cavity polaritons. Final state stimulation is induced by injecting LP by a probe beam (an external cavity semiconductor laser) at normal incidence. The emission from the sample is measured in the normal direction and is separated from the incident probe beam via a nonpolarizing beam splitter (55% transmission).

Published in:

Quantum Electronics Conference, 1998. IQEC 98. Technical Digest. Summaries of papers presented at the International

Date of Conference:

8-8 May 1998