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Journal of Experimental and Theoretical Physics Letters

Nonlinear Dynamics of a Dipolariton Optical Parametric Oscillator

Olga F. Vasilieva, Зинган Анна Петровна, V. V. Vasiliev

Published May 1, 2020• 0 citations
Publisher

Abstract

The dynamics of dipolariton states in a planar microcavity under pumping into the middle dipolariton branch by two laser pulses with close frequencies is investigated. It is shown that both aperiodic and periodic modes of the conversion of pump dipolaritons into idler- and signal-mode dipolaritons can take place under the conditions of exact resonance.

DOI
10.1134/s0021364020090118

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The polariton dynamics in a microcavity in the parametric oscillator mode, when two pump polaritons are transformed into signal and idler polaritons and vice versa, has been studied. A nonlinear differential equation is obtained, which describes the temporal evolution of pump-polariton density, the solution of which is expressed in terms of the Jacobi elliptical functions. The amplitude and period of polaritondensity oscillations are determined by the initial polariton densities and the resonance detuning. The possibility of self-trapping in exciton-polariton dynamics is predicted.
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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