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We report on trapping and control of indirect excitons in diamond-shaped electrostatic traps. An important advantage of the diamond trap is the realization of a parabolic-like trapping potential for excitons on a large scale by utilizing only a single electrode. We also report on trapping and control of excitons in elevated diamond traps implemented by adding a dasiawirepsila electrode around the...
We present studies of 2D indirect excitons in an in-plane trap created by a laterally modulated gate voltage. Our data indicates an effective evaporative cooling of excitons in the elevated trap regime. We also observed narrow PL lines which correspond to the emission of localized and delocalized states of the indirect excitons in the trap. The homogeneous line broadening due to interaction increases...
We report on the kinetics of a low-temperature gas of indirect excitons in an optically-induced exciton trap. The loading time of excitons to the trap center is ∼40 ns.
The macroscopically ordered exciton state (MOES) appears in the external exciton rings in GaAs/(Al,Ga)As coupled quantum wells below a few Kelvin. Here, we report on the experimental study of coherence, interaction and kinetics of MOES.
We present studies of 2D indirect excitons in an in-plane trap created by a laterally modulated gate voltage. Our data indicates an effective evaporative cooling of excitons in the elevated trap regime. We also observed narrow PL lines which correspond to the emission of localized and delocalized states of the indirect excitons in the trap. The homogeneous line broadening due to interaction increases...
We report on the kinetics of a low-temperature gas of indirect excitons in an optically-induced exciton trap. The loading time of excitons to the trap center is ~40 ns.
The macroscopically ordered exciton state (MOES) appears in the external exciton rings in GaAs/(Al,Ga)As coupled quantum wells below a few Kelvin. Here, we report on the experimental study of coherence, interaction and kinetics of MOES.
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