Bistable Topological Insulator with Exciton-Polaritons

被引：100

作者：

Kartashov, Yaroslav V. ^{[1
,2
,3
]}

Skryabin, Dmitry V. ^{[1
,4
]}

机构：

[1] Univ Bath, Dept Phys, Bath BA2 7AY, Avon, England

[2] Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Castelldefels 08860, Barcelona, Spain

[3] Russian Acad Sci, Inst Spect, Troitsk 142190, Moscow Region, Russia

[4] ITMO Univ, Dept Nanophoton & Metamat, St Petersburg 197101, Russia

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 119卷 / 25期

关键词：

STATES; CONDENSATION; SOLITONS;

D O I：

10.1103/PhysRevLett.119.253904

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The functionality of many nonlinear and quantum optical devices relies on the effect of optical bistability. Using microcavity exciton-polaritons in a honeycomb arrangement of microcavity pillars, we report the resonance response and bistability of topological edge states. A balance between the pump, loss, and nonlinearity ensures a broad range of dynamical stability and controls the distribution of power between counterpropagating states on the opposite edges of the honeycomb lattice stripe. Tuning energy and polarization of the pump photons, while keeping their momentum constant, we demonstrate control of the propagation direction of the dominant edge state. Our results facilitate the development of practical applications of topological photonics.

引用

页数：6

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