Dynamic Compression of Spinor Exciton-Polariton Systems in Semiconductor Microcavities

Autor:	S. S. Gavrilov, Nikolay A. Gippius, A. A. Demenev, A. S. Brichkin, V. D. Kulakovskii
Rok vydání:	2018
Předmět:	Condensed Matter::Quantum Gases Physics 020205 medical informatics Condensed Matter::Other Linear polarization Exciton 02 engineering and technology Elliptical polarization Condensed Matter Physics Polarization (waves) 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Momentum Excited state Picosecond 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Polariton Atomic physics 010306 general physics
Zdroj:	Semiconductors. 52:1827-1832
ISSN:	1090-6479 1063-7826
DOI:	10.1134/s1063782618140087
Popis:	The dynamically compressed coherent exciton-polariton condensate state was implemented at the low polariton (LP) band bottom in GaAs microcavity resonantly excited in a wide range of wavevectors by the convergent 2.5-ps long Gaussian linearly polarized beam when the active region of the cavity was ahead of the waist. Formation of the dynamically compressed condensate state at the LP band bottom and its further dynamics are shown to be well described by the Gross-Pitaevskii equation. The state persists for several picosecond until LP-LP repulsion causes its expansion in both spatial and momentum spaces. Dynamic compression of an elliptically polarized LP system is found to occur without preserving its initial polarization: the dynamic compression of weakly interacting components with σ+ and σ− polarization occurs almost independently.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::80a7122c8d6b8575591df4996fe6414f https://doi.org/10.1134/s1063782618140087 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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