104 citations · 1.2k across the 59 of their papers we have counts for
9 papers · 1 filter
Externally Controlled Lotka-Volterra Dynamics in a Linearly Polarized Polariton Fluid
Matthias Pukrop, Stefan Schumacher
Spontaneous formation of transverse patterns is ubiquitous in nonlinear dynamical systems of all kinds. An aspect of particular interest is the active control of such patterns. In…
Directional optical switching and transistor functionality using optical parametric oscillation in a spinor polariton fluid
Przemyslaw Lewandowski, Samuel M. H. Luk, Chris K. P. Chan +4
Over the past decade, spontaneously emerging patterns in the density of polaritons in semiconductor microcavities were found to be a promising candidate for all-optical switching.…
Electron-spin beat susceptibility of excitons in semiconductor quantum wells
N H. Kwong, S. Schumacher, R. Binder
Recent time-resolved differential transmission and Faraday rotation measurements of long-lived electron spin coherence in quantum wells displayed intriguing parametric dependencies…
All-optical switching in planar semiconductor microcavities
S. Schumacher, N. H. Kwong, R. Binder +1
Using a microscopic many-particle theory, we propose all-optical switching in planar semiconductor microcavities where a weak beam switches a stronger signal. Based on four-wave-mi…
Polarization-anisotropy induced spatial anisotropy of polariton amplification in planar semiconductor microcavities
Stefan Schumacher
Based on a microscopic many-particle theory we investigate the amplification of polaritons in planar semiconductor microcavities. We study a spatially perfectly isotropic microcavi…
Polariton amplification in a multiple-quantum-well resonant photonic crystal
S. Schumacher, N. H. Kwong, R. Binder
Based on a microscopic many-particle theory we study the amplification of polaritons in a multiple-quantum-well resonant photonic crystal. For the Bragg-spaced multiple quantum wel…
Influence of exciton-exciton correlations on the polarization characteristics of the polariton amplification in semiconductor microcavities
S. Schumacher, N. H. Kwong, R. Binder
Based on a microscopic many-particle theory we investigate the influence of excitonic correlations on the vectorial polarization state characteristics of the parametric amplificati…
Large optical gain from four-wave mixing instabilities in semiconductor quantum wells
S. Schumacher, N. H. Kwong, R. Binder
Based on a microscopic many-particle theory, we predict large optical gain in the probe and background-free four-wave mixing directions caused by excitonic instabilities in semicon…
Coherent Propagation of Polaritons in Semiconductor Heterostructures: Nonlinear Pulse Transmission in Theory and Experiment
S. Schumacher, G. Czycholl, F. Jahnke +7
The influence of coherent optical nonlinearities on polariton propagation effects is studied within a theory-experiment comparison. A novel approach that combines a microscopic tre…