Publication
Title
Stochastic precession of the polarization in a polariton laser
Author
Abstract
Microcavity polaritons in the lasing regime undergo a spontaneous symmetry-breaking transition resulting in coherent emission with a well-defined polarization. The order parameter is thus a vector describing both the laser global phase and its polarization. Using an ultrafast single-shot detection technique, we show that polariton lasing in GaAs-based microcavities presents a high degree of second-order coherence [g((2))(tau = 0) approximate to 1] above threshold, and that the initial polarization is stochastic, taking any possible direction in the Poincare sphere (linear, elliptical, or circular). Once the polarization direction is established, subsequent oscillations of the emission probability witness the presence of an intrinsic polarization splitting. These results show the intricate polarization dynamics in the onset of polariton lasers.
Language
English
Source (journal)
PHYSICAL REVIEW B
Publication
2016
Volume/pages
93:11(2016), 8 p.
Article Reference
115313
ISI
000372715500002
Medium
E-only publicatie
Full text (Publishers DOI)
Full text (open access)
UAntwerpen
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 10.05.2016
Last edited 19.05.2017
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