Dynamics of spinor exciton-polariton condensates in double potential traps in a GaAs/AlAs microcavity under resonant picosecond excitation

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Abstract

The temporal evolution of the polarized emission spectra of spinor exciton-polariton condensates in double tunnel-coupled potential traps in a high-Q GaAs/AlAs microcavity at 2 K under resonant laser pumping with picosecond pulses has been studied in the time range up to 1.5 ns. An estimate of the spin relaxation time of the condensate τS ∼ 10 ns is obtained. The influence of the symmetry of the trap potential on the energy spectrum of the polariton modes and on the polarization dynamics of the spinor condensate in the tunnel-coupled potential traps is discussed.

About the authors

A. A Demenev

Osipyan Institute of Solid State Physics of the Russian Academy of Sciences

Email: demenev@issp.ac.ru
Chernogolovka, Russia

S. N Tereshko

Osipyan Institute of Solid State Physics of the Russian Academy of Sciences

Chernogolovka, Russia

N. A Gippius

Skolkovo Institute of Science and Technology

Moscow, Russia

V. D Kulakovskii

Osipyan Institute of Solid State Physics of the Russian Academy of Sciences

Chernogolovka, Russia

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