Energy relaxation of exciton-polariton condensates in quasi-one-dimensional microcavities
Metadatos
Title:
Energy relaxation of exciton-polariton condensates in quasi-one-dimensional microcavities
Author:
Antón, C.; Liew, T. C. H.; Tosi, Guilherme; Martín, M. D.; Gao, T.; Hatzopoulos, Z.; Eldridge, P. S.; Savvidis, P. G.; Viña, Luis
Entity:
UAM. Departamento de Física de Materiales
UAM Author:
Viña Liste, Luis M.
; Tosi , Guilherme
Publisher:
American Physical Society
Date:
2013-07-24
Citation:
10.1103/PhysRevB.88.035313
Physical Review B 88.3 (2013): 035313
ISSN:
1098-0121 (print); 1550-235X (online)
DOI:
10.1103/PhysRevB.88.035313
Funded by:
C.A. and G.T. acknowledge financial support from Spanish
FPU and FPI scholarships, respectively. P.S. acknowledges
Greek GSRT program “ARISTEIA” (1978) for financial
support. The work was partially supported by the Spanish
MEC MAT2011-22997, CAM (S-2009/ESP-1503), and FP7
ITN’s “Clermont4” (235114), “Spin-optronics” (237252), and
INDEX (289968) projects
Project:
info:eu-repo/grantAgreement/EC/FP7/235114; info:eu-repo/grantAgreement/EC/FP7/237252; info:eu-repo/grantAgreement/EC/FP7/289968; Comunidad de Madrid. S2009/ESP-1503/Q&CLIGHT; Gobierno de España. MAT2011-22997
Editor's Version:
http://dx.doi.org/10.1103/PhysRevB.88.035313
Subjects:
Semiconductor; Física
Rights:
©2013 American Physical Society
Abstract:
We present a time-resolved study of energy relaxation and trapping dynamics of polariton condensates in
a semiconductor microcavity ridge. The combination of two nonresonant, pulsed laser sources in a GaAs
ridge-shaped microcavity gives rise to profuse quantum phenomena where the repulsive potentials created by
the lasers allow the modulation and control of the polariton flow. We analyze in detail the dependence of the
dynamics on the power of both lasers and determine the optimum conditions for realizing an all-optical polariton
condensate transistor switch. The experimental results are interpreted in the light of simulations based on a
generalized Gross-Pitaevskii equation, including incoherent pumping, decay, and energy relaxation within the
condensate
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