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Amplification of nonlinear polariton pulses in waveguides

Amplification of nonlinear polariton pulses in waveguides

Title: Amplification of nonlinear polariton pulses in waveguides
Author: Tapia Rodriguez, Lucy E.
Walker, Paul M.
Sigurdsson, Helgi   orcid.org/0000-0002-4156-4414
Royall, Ben
Farrer, Ian
Ritchie, David A.
Yulin, Alexey V.
Shelykh, Ivan   orcid.org/0000-0001-5393-821X
Skolnick, Maurice S.
Krizhanovskii, Dmitry N.
Date: 2019-04-03
Language: English
Scope: 10692
University/Institute: Háskóli Íslands
University of Iceland
School: Verkfræði- og náttúruvísindasvið (HÍ)
School of Engineering and Natural Sciences (UI)
Department: Raunvísindastofnun (HÍ)
Science Institute (UI)
Series: Optics Express;27(8)
ISSN: 1094-4087
DOI: 10.1364/OE.27.010692
Subject: Nonlinear optics; Optical data; Photons; Waveguides; Ljósfræði; Bylgjufræði
URI: https://hdl.handle.net/20.500.11815/1772

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Lucy E. Tapia Rodriguez, Paul M. Walker, Helgi Sigurdsson, Ben Royall, Ian Farrer, David A. Ritchie, Alexey V. Yulin, Ivan A. Shelykh, Maurice S. Skolnick, and Dmitry N. Krizhanovskii, "Amplification of nonlinear polariton pulses in waveguides," Optics Express 27, 10692-10704 (2019)


Using a sub-millimeter exciton-polariton waveguide suitable for integrated photonics, we experimentally demonstrate nonlinear modulation of pico-Joule pulses at the same time as amplification sufficient to compensate the system losses. By comparison with a numerical model we explain the observed interplay of gain and nonlinearity as amplification of the interacting polariton field by stimulated scattering from an incoherent continuous-wave reservoir that is depleted by the pulses. This combination of gain and giant ultrafast nonlinearity operating on picosecond pulses has the potential to open up new directions in low-power all-optical information processing and nonlinear photonic simulation of conservative and driven-dissipative systems.


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