典型文献
Interacting plexcitons for designed ultrafast optical nonlinearity in a monolayer semiconductor
文献摘要：
Searching for ideal materials with strong effective optical nonlinear responses is a long-term task enabling remarkable breakthroughs in contemporary quantum and nonlinear optics.Polaritons,hybridized light-matter quasiparticles,are an appealing candidate to realize such nonlinearities.Here,we explore a class of peculiar polaritons,named plasmon-exciton polaritons(plexcitons),in a hybrid system composed of silver nanodisk arrays and monolayer tungsten-disulfide(WS2),which shows giant room-temperature nonlinearity due to their deep-subwavelength localized nature.Specifically,comprehensive ultrafast pump-probe measurements reveal that plexciton nonlinearity is dominated by the saturation and higher-order excitation-induced dephasing interactions,rather than the well-known exchange interaction in traditional microcavity polaritons.Furthermore,we demonstrate this giant nonlinearity can be exploited to manipulate the ultrafast nonlinear absorption properties of the solid-state system.Our findings suggest that plexcitons are intrinsically strongly interacting,thereby pioneering new horizons for practical implementations such as energy-efficient ultrafast all-optical switching and information processing.
文献关键词：
中图分类号：
作者姓名：
Yuxiang Tang;Yanbin Zhang;Qirui Liu;Ke Wei;Xiang'ai Cheng;Lei Shi;Tian Jiang
作者机构：
College of Advanced Interdisciplinary Studies,National University of Defense Technology,410073 Changsha,China;Key Laboratory of Micro-and Nano-Photonic Structures(Ministry of Education),and State Key Laboratory of Surface Physics,Department of Physics,Fudan University,200433 Shanghai,China;State Key Laboratory of High Performance Computing,College of Computer,National University of Defense Technology,410073 Changsha,China;Beijing Institute for Advanced Study,National University of Defense Technology,100000 Beijing,China
文献出处：
引用格式：
[1]Yuxiang Tang;Yanbin Zhang;Qirui Liu;Ke Wei;Xiang'ai Cheng;Lei Shi;Tian Jiang-.Interacting plexcitons for designed ultrafast optical nonlinearity in a monolayer semiconductor)[J].光：科学与应用（英文版）,2022(05):877-887
A类：
plexcitons,Polaritons,plexciton
B类：
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AB值：
0.677459
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