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physica status solidi (b)

Spatial properties and coherence of the high density phase in the microcavity optical parametric oscillator

Maurice S. Skolnick, D. Sanvitto, Dmitry N. Krizhanovskii, A. P. D. Love, David M. Whittaker, J. S. Roberts

Published Nov 1, 2006• 1 citation
Publisher

Abstract

Abstract The special issue entitled “Frontiers in Semiconductor Nanoscience” with a total of more than forty contributions from leading scientists in semiconductor and nanostructure physics has been prepared to honor Gerhard Abstreiter, Technische Universität München. The present Part B contains Feature Articles and Original Papers in the areas of quantum transport, optical properties and coherent phenomena. Part A of the special issue on nano‐biological systems, novel materials and nanostructures is published in phys. stat. sol. (a) 203, No. 14 (2006). The cover picture has been taken from the Feature Article [1] by Maurice Skolnick et al. It illustrates a calculation of the signal distribution and photonic potential (white contours) in a microcavity optical parametric oscillator with evidence for strong localisation in the potential minima. This issue also contains articles presented at the 7th International Conference on Excitonic Processes in Condensed Matter held in Winston‐Salem, USA, 26–30 June 2006. They include the Editor's Choice “Optical manipulation of CuCl nanoparticles under an excitonic resonance condition in superfluid helium” by K. Inaba et al. The first author received one of the two EXCON Prizes sponsored by Wiley‐VCH. More contributions from EXCON'06 can be found in phys. stat. sol. (c) 3, No. 10 (2006). (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

DOI
10.1002/pssb.200690025

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We discuss the quantum statistical properties of exciton-polaritons in semiconductor microcavities. The nonlinear dynamics is treated within a model of interacting bosons for the signal, pump and idler modes. We focus on the regime of parametric amplification below threshold. We present the time evolution of the signal and idler modes towards their stationary solutions and evaluate the amount of squeezing of the radiation emitted out of the microcavity in a configuration, which is relevant for experiments. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
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In this paper by Wolfgang Langbein and Jørn M. Hvam [1], selected as Editor's Choice in the present issue of phys. stat. sol. (a), the localization of biexcitonic and excitonic states in GaAs quantum wells is investigated by spectrally resolved four-wave mixing (FWM) experiments. The cover picture is a contour plot of the FWM intensity as a function of temporal pulse separation τ12 for cross-linear and co-polarization, scaled with the exciton binding energy R*y. Data are shown for three single and multi quantum well structures with different thicknesses, causing varying homogeneous and inhomogeneous broadening of the excitonic transitions (for details see [1]). The paper is an invited presentation and part of the Proceedings of the International Workshop on “Physics of Light–Matter Coupling in Nitrides (PLMCN-1)” held in Rome, Italy, September 26–29, 2001.
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Abstract The illustration on the front cover refers to an Editor's Choice article by Michael Dzierzawa et al. (pp. 941–947 in this issue) which was presented at the International Conference on Theoretical Physics: Coherence and Correlations in Nanosystems. The paper investigates the frequency‐dependent response of a one‐dimensional fermion system with nearest‐neighbor interaction. Luttinger liquid behavior in the long‐wavelength limit has been shown employing a combination of current density functional theory with Bethe ansatz results for the ground state energy. The picture shows a contour plot of the imaginary part of the dynamical susceptibility (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)