An exciton-polariton mediated all-optical router

H. Flayac; I. G. Savenko

doi:10.1063/1.4830007

An exciton-polariton mediated all-optical router

H. Flayac, I. G. Savenko

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

We propose an all-optical nonlinear router based on a double barrier gate connected to periodically modulated guides. A semiconductor microcavity is driven nonresonantly in-between the barriers to form an exciton-polariton condensate on a discrete state that is subject to the exciton blueshift. The subsequent coherent optical signal is allowed to propagate through a guide provided that the condensate energy is resonant with a miniband or is blocked if it faces a gap. While a symmetric sample operates as an optical switch, its asymmetric counterpart embodies a router turned to be polarization selective under applied magnetic field.

Original language	English
Article number	201105
Journal	Applied Physics Letters
Volume	103
Issue number	20
DOIs	https://doi.org/10.1063/1.4830007
State	Published - 11 Nov 2013
Externally published	Yes

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10.1063/1.4830007

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abstract = "We propose an all-optical nonlinear router based on a double barrier gate connected to periodically modulated guides. A semiconductor microcavity is driven nonresonantly in-between the barriers to form an exciton-polariton condensate on a discrete state that is subject to the exciton blueshift. The subsequent coherent optical signal is allowed to propagate through a guide provided that the condensate energy is resonant with a miniband or is blocked if it faces a gap. While a symmetric sample operates as an optical switch, its asymmetric counterpart embodies a router turned to be polarization selective under applied magnetic field.",

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note = "Funding Information: The authors thank E. Ostrovskaya and T. Liew for useful discussions. H.F. acknowledges financial support from NCCR Quantum Photonics (NCCR QP), research instrument of the Swiss National Science Foundation (SNSF). I.G.S. was supported by the FP7 IRSES projects “SPINMET,” “POLAPHEN,” and the Eimskip Fund.",

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AB - We propose an all-optical nonlinear router based on a double barrier gate connected to periodically modulated guides. A semiconductor microcavity is driven nonresonantly in-between the barriers to form an exciton-polariton condensate on a discrete state that is subject to the exciton blueshift. The subsequent coherent optical signal is allowed to propagate through a guide provided that the condensate energy is resonant with a miniband or is blocked if it faces a gap. While a symmetric sample operates as an optical switch, its asymmetric counterpart embodies a router turned to be polarization selective under applied magnetic field.

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An exciton-polariton mediated all-optical router

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