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3 results on '"Butov, Leonid V."'

1. Spontaneous coherence of indirect excitons in a trap.

Author

High, Alexander A., Leonard, Jason R., Remeika, Mikas, Butov, Leonid V., Hanson, Micah, and Gossard, Arthur C.

Abstract

We report on the emergence of spontaneous coherence of indirect excitons in a trap. At low temperatures, coherence extends over the entire exciton cloud indicating condensation of excitons in the trap. [ABSTRACT FROM PUBLISHER]

Published
2012

2. Spontaneous coherence in a cold exciton gas.

Author

High, Alexander A., Leonard, Jason R., Hammack, Aaron T., Fogler, Michael M., Butov, Leonid V., Kavokin, Alexey V., Campman, Kenneth L., and Gossard, Arthur C.

Abstract

We report on the measurement of spontaneous coherence in a gas of indirect excitons. Extended spontaneous coherence, spin texture, and phase singularities emerge when the exciton gas is cooled below a few Kelvin. [ABSTRACT FROM PUBLISHER]

Published
2012

3. Solid-state physics: A polariton laser.

Author

Butov, Leonid V.

Subjects
POLARITONS, SEMICONDUCTORS, PARTICLES, ELECTRONS, EXCITON theory
Abstract

The article provides information about the coherent state of matter-light excitations or polaritons in a semiconductor microcavity. A semiconductor microcavity is built by placing a semiconductor layer between two mirrors. Excitation by an external source, typically a laser, can populate the cavity with different types of particle. Excitons act as matter particles with a mass equal to the combined mass of an electron.

Published
2007
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