Title :
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
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;
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
DOI :
10.1109/IQEC.1998.680007
