Spatiotemporal continuum generation in polariton waveguides  

作　　者：Paul M.Walker Charles E.Whittaker Dmitry V.Skryabin Emiliano Cancellieri Ben Royall Maksym Sich Ian Farrer David A.Ritchie Maurice S.Skolnick Dmitry N.Krizhanovskii 

机构地区：[1]Department of Physics and Astronomy,University of Sheffield,Sheffield S37RH,UK [2]Department of Physics,University of Bath,Bath BA27AY,UK [3]ITMO University,Kronverksky Avenue 49,St.Petersburg 197101,Russia [4]Department of Physics,Lancaster University,Lancaster LA14YB,UK [5]Department of Electronic and Electrical Engineering,University of Sheffield,Sheffield S37HQ,UK [6]Cavendish Laboratory,University of Cambridge,Cambridge CB30HE,UK

出　　处：《Light(Science & Applications)》2019年第1期1117-1127,共11页光（科学与应用)（英文版）

基　　金：support from EPSRC Grants Nos.EP/J007544/1 and EP/N031776/1;the ERC Advanced Grant EXCIPOL 320570;support from the Leverhulme Trust Grant No.RPG-2013-339;the Russian Foundation for Basic Research(16-52-150006);the ITMO University Fellowship through the Government of Russia Grant No.074-U01.

摘　　要：We demonstrate the generation of a spatiotemporal optical continuum in a highly nonlinear exciton–polariton waveguide using extremely low excitation powers(2-ps,100-W peak power pulses)and a submillimeter device suitable for integrated optics applications.We observe contributions from several mechanisms over a range of powers and demonstrate that the strong light–matter coupling significantly modifies the physics involved in all of them.The experimental data are well understood in combination with theoretical modeling.The results are applicable to a wide range of systems with linear coupling between nonlinear oscillators and particularly to emerging polariton devices that incorporate materials,such as gallium nitride and transition metal dichalcogenide monolayers that exhibit large light–matter coupling at room temperature.These open the door to low-power experimental studies of spatiotemporal nonlinear optics in submillimeter waveguide devices.

关 键 词：MILLIMETER WAVEGUIDE OPTICS 

分 类 号：TN2[电子电信—物理电子学]