典型文献
Polarization-switchable plasmonic emitters based on laser-induced bubbles
文献摘要：
Owing to weak light-matter interactions in natural materials, it is difficult to dynamically tune and switch emission polariza-tion states of plasmonic emitters (or antennas) at nanometer scales. Here, by using a control laser beam to induce a bubble (n=1.0) in water (n=1.333) to obtain a large index variation as high as |Δn|=0.333, the emission polarization of an ultra-small plasmonic emitter (～0.4λ2) is experimentally switched at nanometer scales. The plasmonic emitter consists of two orthogonal subwavelength metallic nanogroove antennas on a metal surface, and the separation of the two anten-nas is only sx=120 nm. The emission polarization state of the plasmonic emitter is related to the phase difference between the emission light from the two antennas. Because of a large refractive index variation (|Δn|=0.333), the phase difference is greatly changed when a microbubble emerges in water under a low-intensity control laser. As a result, the emission polarization of the ultra-small plasmonic emitter is dynamically switched from an elliptical polarization state to a linear polarization state, and the change of the degree of linear polarization is as high as Δγ≈0.66.
文献关键词：
中图分类号：
作者姓名：
Jianjun Chen;Fengyuan Gan
作者机构：
Department of Physics and Applied Optics Beijing Area Major Laboratory,Beijing Normal University,Beijing 100875,China;State Key Laboratory for Mesoscopic Physics,School of Physics,Peking University,Beijing 100871,China;Peking University Yangtze Delta Institute of Optoelectronics,Nantong 226010,China;Frontiers Science Center for Nano-optoelectronics&Collaborative Innovation Center of Quantum Matter,Peking University,Beijing 100871,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China
文献出处：
引用格式：
[1]Jianjun Chen;Fengyuan Gan-.Polarization-switchable plasmonic emitters based on laser-induced bubbles)[J].光电进展（英文版）,2022(08):11-20
A类：
nanogroove,anten
B类：
Polarization,switchable,plasmonic,emitters,laser,induced,bubbles,Owing,weak,light,matter,interactions,natural,materials,difficult,dynamically,tune,emission,states,antennas,nanometer,scales,Here,by,using,control,beam,water,obtain,large,variation,high,polarization,ultra,small,experimentally,switched,consists,two,orthogonal,subwavelength,metallic,surface,separation,only,sx,related,phase,difference,between,from,Because,refractive,greatly,changed,when,microbubble,emerges,under,low,intensity,result,elliptical,linear,degree
AB值：
0.419749
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