Title :
Impact of optical confinement on parametric polariton scattering in microcavities
Author :
Dasbach, G. ; Schwab, M. ; Bayer, M. ; Forchel, A.
Author_Institution :
Technische Phys., Wurzburg Univ., Germany
Abstract :
Summary form only given. Parametric polariton scattering processes in semiconductor microcavities have been investigated intensively in the last years. These processes become accessible due to the characteristic curvature of the lower polariton branch. If polaritons are photoexcited at the inflection point of the branch, they undergo pair scattering in the excitonic section of the lower polariton branch. In the present experiments we advance further in this direction by tailoring the polariton dispersion, in order to obtain perfect control of the accessible scattering channels. For this goal two parameters can be adjusted: the geometrical dimensions of the resonator and the exciton-photon detuning.
Keywords :
microcavities; optical resonators; photoluminescence; photonic band gap; polaritons; semiconductor quantum wells; spontaneous emission; additional photon confinement; angle resolved photoluminescence; characteristic curvature; exciton-photon detuning; geometrical dimensions; idler state; lower polariton branch; multiple polariton modes; optical confinement; pair scattering; parametric polariton scattering; photonic wires; resonator plane; semiconductor microcavities; two dimensional confinement; Optical resonators; Photoluminescence; Quantum wells; Spontaneous emission;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-708-3
DOI :
10.1109/QELS.2002.1031089