All-Optical Linear-Polarization Engineering in Single and Coupled Exciton-Polariton Condensates

被引：14

作者：

Gnusov, I. ^{[1
]}

Sigurdsson, H. ^{[2
,3
]}

Topfer, J. D. ^{[1
]}

Baryshev, S. ^{[1
]}

Alyatkin, S. ^{[1
]}

Lagoudakis, P. G. ^{[1
,3
]}

机构：

[1] Skolkovo Inst Sci & Technol, Terr Innovat Ctr Skolkovo, Bolshoy Blvd 30,Bldg 1, Moscow 121205, Russia

[2] Univ Iceland, Inst Sci, Dunhagi 3, IS-107 Reykjavik, Iceland

[3] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

来源：

PHYSICAL REVIEW APPLIED | 2021年 / 16卷 / 03期

基金：

英国工程与自然科学研究理事会; 欧盟地平线“2020”; 俄罗斯基础研究基金会;

关键词：

BOSE-EINSTEIN CONDENSATION; MICROCAVITY POLARITONS; LIGHT; VORTICES;

D O I：

10.1103/PhysRevApplied.16.034014

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate all-optical linear-polarization control in semiconductor microcavities using an excitonpolariton condensate in an elliptically shaped optical trap. The microcavity inherent TE-TM splitting lifts the pseudospin degeneracy of the anisotropic trap ground state. The emerging fine-structure modes are shown to be polarized linearly parallel and perpendicular to the trap major axis. We demonstrate polariton condensation into the excited pseudospin mode with a high degree of linear polarization, which rotates as we rotate the trap. We then extend our study to a system of two coupled linearly polarized condensates and demonstrate rich spin dynamics reflecting spontaneous synchronization and high correlation between the condensate pseudospins as a function of the pump parameters. Our findings open up exciting perspectives in both spinoptronics and studies on extended systems of interacting nonlinear optical elements with anisotropic coupling strength and adjustable fine structure.

引用

页数：10

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