Spin rings in semiconductor microcavities

被引：50
|
作者：
Shelykh, I. A. [1 ,2 ]
Liew, T. C. H. [1 ,3 ]
Kavokin, A. V. [3 ,4 ]
机构：
[1] Univ Brasilia, ICCMP, BR-70904970 Brasilia, DF, Brazil
[2] St Petersburg State Polytech Univ, St Petersburg 195251, Russia
[3] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
[4] Univ Roma Tor Vergata, Fac Phys, I-00133 Rome, Italy
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 11期
关键词：
D O I：
10.1103/PhysRevLett.100.116401
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
New effects of self-organization and polarization pattern formation in semiconductor microcavities, operating in the nonlinear regime, are predicted and theoretically analyzed. We show that a spatially inhomogeneous elliptically polarized optical cw pump leads to the formation of a strongly circularly polarized ring in real space. This effect is due to the polarization multistability of cavity polaritons which was recently predicted. The possible switching between different stable configurations allows the realization of a localized spin memory element, suitable for an optical data storage device.
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页数：4
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