Stimulated emission of exciton polaritons in a semiconductor microcavity

Author

Tassone, F. ; Huang, R. ; Yamamoto, Yusaku

Author_Institution

Edward L. Ginzton Lab., Stanford Univ., CA, USA

fYear

1998

fDate

8-8 May 1998

Firstpage

9

Lastpage

10

Abstract

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).

Keywords

excitons; laser beams; micro-optics; optical pumping; optical resonators; polaritons; stimulated emission; cavity polaritons; coherent Ti:sapphire ring laser; exciton populations; exciton-exciton collisions; external cavity semiconductor laser; final state stimulation; incident probe beam; large occupation numbers; microcavity polaritons; nonpolarizing beam splitter; normal incidence; opposite in-plane momenta; probe beam; pump beams; semiconductor microcavity excited polariton stimulated emission; Atomic beams; Excitons; Extraterrestrial measurements; Fluctuations; Laser theory; Microcavities; Mirrors; Optical interferometry; Resonance; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

San Francisco, CA, USA

Print_ISBN

1-55752-541-2

Type

conf

DOI

10.1109/IQEC.1998.680007

Filename

680007