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arXiv:cond-mat/0407553 · Physical Review B

Optical bistability in semiconductor microcavities in the nondegenerate parametric oscillation regime: Analogy with the optical parametric oscillator

A. Baas, Jean‐Philippe Karr, Marco Romanelli, Alberto Bramati, E. Giacobino

Published Oct 22, 2004• 108 citations
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Abstract

We report the observation of optical bistability in a microcavity pumped resonantly close to the inflection point of the lower polariton dispersion. Experimental evidence is given in the form of a hysteresis cycle of the nonlinear emission as a function of the pump intensity or the position of the excitation spot. The results can be well understood with simple theoretical considerations that underline the fundamental analogy between our system and an optical parametric oscillator.

DOI
10.1103/physrevb.70.161307

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We report the observation of optical bistability in a microcavity pumped resonantly close to the inflection point of the lower polariton dispersion. Experimental evidence is given in the form of a hysteresis cycle of the nonlinear emission as a function of the pump intensity or the position of the excitation spot. The results can be well understood with simple theoretical considerations that underline the fundamental analogy between our system and an optical parametric oscillator.
Abstract We report the observation of optical bistability in a semiconductor microcavity pumped at the “magic angle” above the parametric oscillation threshold. Experimental evidence is given in the form of a hysteresis cycle of the nonlinear emission as a function of the pump intensity. A model analogous to those developped for triply resonant Optical Parametric Oscillators (OPO) is in good agreement with the experimental findings. In the second part, we study the potential application of the parametric oscillation regime to quantum optics. The quantum correlations between the emitted “signal” and “idler” beams are computed. We show that very strong quantum correlations between the signal and idler polaritons can be achieved. However the quantum effects in the outgoing light fields are strongly reduced due to the large mismatch in the coupling of the signal and idler polaritons to the external photons. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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We report the experimental observation of hysteresis in the optical response of a semiconductor microcavity under normal mode coupling regime. A third resonance mode, spectrally lying at the bare cavity mode frequency, suddenly appears in the reflectivity and resonant Rayleigh scattering spectra when increasing the excitation power, resulting in a coexistence of three resonance modes. Bistability loops in both microcavity optical response are found at the energy of this third mode. Associated to the bistability, laserlike emission occurs at the bare cavity mode.
Optical bistability in a semiconductor microcavity showing normal mode coupling regime is observed by means of reflectivity and resonant Rayleigh scattering experiments. A third resonance, spectrally lying between the two normal modes, suddenly appears in the optical response when increasing the excitation power. Hysteresis loops are found when monitoring the microcavity optical response at the energy of the third peak. Our experimental findings can not be accounted for simply by exciton bleaching. We conclude that other non-linear mechanisms are relevant in explaining the presence of the third peak and the observed bistable behaviour. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
New effects of polarization multistability and polarization hysteresis in a coherently driven polariton system in a semiconductor microcavity are predicted and theoretically analyzed. The multistability arises due to polarization-dependent polariton-polariton interactions and can be revealed in polarization resolved photoluminescence experiments. The pumping power required to observe this effect is 4 orders of magnitude lower than the characteristic pumping power in conventional bistable optical systems.