Transverse optical patterns for ultra‐low‐light‐level all‐optical switching

AMC Dawes, DJ Gauthier… - Laser & Photonics …, 2010 - Wiley Online Library
We review recent theoretical and experimental efforts toward developing an all‐optical
switch based on transverse optical patterns. Transverse optical patterns are formed when …

Formation and control of Turing patterns in a coherent quantum fluid

V Ardizzone, P Lewandowski, MH Luk, YC Tse… - Scientific Reports, 2013 - nature.com
Nonequilibrium patterns in open systems are ubiquitous in nature, with examples as diverse
as desert sand dunes, animal coat patterns such as zebra stripes, or geographic patterns in …

Transverse optical instability patterns in semiconductor microcavities: polariton scattering and low-intensity all-optical switching

MH Luk, YC Tse, NH Kwong, PT Leung… - Physical Review B …, 2013 - APS
We present a detailed theoretical study of transverse exciton-polariton patterns in
semiconductor quantum well microcavities. These patterns are initiated by directional …

Low intensity directional switching of light in semiconductor microcavities

S Schumacher, NH Kwong, R Binder… - physica status solidi …, 2009 - Wiley Online Library
1 Introduction Recently, an all-optical switch operating at very low light intensities was
demonstrated in an atomic vapor system [1]. For two pump beams counterpropagating …

Polarization dependence of nonlinear wave mixing of spinor polaritons in semiconductor microcavities

P Lewandowski, O Lafont, E Baudin, CKP Chan… - Physical Review B, 2016 - APS
The pseudospin dynamics of propagating exciton-polaritons in semiconductor microcavities
are known to be strongly influenced by TE-TM splitting. As a vivid consequence, in the …

A population-competition model for analyzing transverse optical patterns including optical control and structural anisotropy

YC Tse, CKP Chan, MH Luk, NH Kwong… - New Journal of …, 2015 - iopscience.iop.org
We present a detailed study of a low-dimensional population-competition (PC) model
suitable for analysis of the dynamics of certain modulational instability patterns in extended …

Optical switching of polariton density patterns in a semiconductor microcavity

NH Kwong, CY Tsang, SMH Luk, YC Tse… - Physica …, 2017 - iopscience.iop.org
Phase-conjugate scattering can trigger modulational instabilities in a fluid of exciton-
polaritons created in a pumped semiconductor quantum-well microcavity. These instabilities …

Optically controlled orbital angular momentum generation in a polaritonic quantum fluid

SMH Luk, NH Kwong, P Lewandowski… - Physical Review Letters, 2017 - APS
Applications of the orbital angular momentum (OAM) of light range from the next generation
of optical communication systems to optical imaging and optical manipulation of particles …

Patterns and switching dynamics in polaritonic quantum fluids in semiconductor microcavities

NH Kwong, CY Tsang, MH Luk, YC Tse… - JOSA B, 2016 - opg.optica.org
The occurrence of instability-driven polariton density patterns in semiconductor quantum-
well microcavities has been predicted and demonstrated experimentally. Simulations have …

Optical memory based on ultrafast wavelength switching in a bistable microlaser

SV Zhukovsky, DN Chigrin - Optics letters, 2009 - opg.optica.org
We propose an optical memory cell based on ultrafast wavelength switching in coupled-
cavity microlasers, featuring bistability between modes separated by several nanometers. A …