Nonlinear Polariton Localization in Strongly Coupled Driven-Dissipative Microcavities

Year: 2018

Authors: Rodriguez S. R. K.; Amo A.; Carusotto I.; Sagnes I.; Le Gratiet L.; Galopin E.; Lemaitre A.; Bloch J.

Autors Affiliation: Univ Paris Saclay, Univ Paris Sud, Marcoussis C2N, Ctr Nanosci & Nanotechnol,CNRS, F-91460 Marcoussis, France; INO CNR BEC Ctr, I-38123 Povo, Italy and Univ Trento, Dipartimento Fis, I-38123 Povo, Italy; Univ Utrecht, Debye Inst, Nanophoton, POB 80-000, NL-3508 TA Utrecht, Netherlands

Abstract: The interplay of hopping and interactions in coupled photonic resonators gives rise to a number of nonlinear optical phenomena including multistability, self-trapping, and nonlinear Josephson oscillations. Here we use two coupled semiconductor microcavities to investigate the nonlinear localization of polaritons in a novel regime where a single cavity is coherently driven at a frequency just above the lowest bonding state of the dimer. For driving powers above the bistability threshold we observe that polaritons progressively localize in the driven cavity. Our experimental observations are reproduced by numerical calculations using a one-dimensional driven-dissipative Gross-Pitaevsldi equation. The phenomenology here observed shows the potential of nonlinear coupled photonic resonators to engineer novel optical functionalities.

Journal/Review: ACS PHOTONICS

Volume: 5 (1)      Pages from: 95  to: 99

KeyWords: exciton-polaritons; nonlinear; coupled cavities; optical bistability; localization
DOI: 10.1021/acsphotonics.7b00721

Citations: 5
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