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Routing emission with multi-channel nonreciprocal waveguide

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Abstract

In this work, we present a multi-channel nonreciprocal waveguide, which is composed of a gyrotropic-bounded dielectric on the bottom and a plasmonic material on the top. The Lorentz reciprocity in the time-invariant system is broken when applying an external static magnetic field on the gyrotropic material. The nonreciprocal emission from the dipole source located in the center of the waveguide is observed in extended waveband channels. The proposed heterostructure serves as a photonic dichroism once the dielectric is replaced by a nonlinear material. The associated second harmonic generated in the nonlinear process can be separated from the fundamental signal under proper magnetic field intensity. Our findings may provide significant guidance for designing nonreciprocal photonic devices with superiorities of tunable waveband, multiple channels, and small footprint.

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DOI:10.1364/PRJ.7.000642

所属栏目:Surface Optics and Plasmonics

基金项目:National Natural Science Foundation of China (NSFC)10.13039/501100001809; Natural Science Research of Jiangsu Higher Education Institutions of China10.13039/501100010023; Natural Science Foundation of Jiangsu Province10.13039/501100004608; China Postdoctoral Science Foundation10.13039/501100002858; Priority Academic Program Development of Jiangsu Higher Education Institutions; Ministry of Education - Singapore (MOE)10.13039/501100001459;

收稿日期:2019-01-08

录用日期:2019-04-04

网络出版日期:2019-05-15

作者单位    点击查看

Hao Hu:School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore, Singapore
Liangliang Liu:School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore, SingaporeResearch Center of Applied Electromagnetics, School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, Chinae-mail: llliu@ntu.edu.sg
Xiao Hu:School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore, Singapore
Dongjue Liu:School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore, Singapore
Dongliang Gao:School of Physical Science and Technology, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, Chinae-mail: dlgao@suda.edu.cn

联系人作者:Liangliang Liu, Dongliang Gao,(llliu@ntu.edu.sg, dlgao@suda.edu.cn, )

备注:National Natural Science Foundation of China (NSFC)10.13039/501100001809; Natural Science Research of Jiangsu Higher Education Institutions of China10.13039/501100010023; Natural Science Foundation of Jiangsu Province10.13039/501100004608; China Postdoctoral Science Foundation10.13039/501100002858; Priority Academic Program Development of Jiangsu Higher Education Institutions; Ministry of Education - Singapore (MOE)10.13039/501100001459;

引用该论文

Hao Hu, Liangliang Liu, Xiao Hu, Dongjue Liu, and Dongliang Gao, "Routing emission with multi-channel nonreciprocal waveguide," Photonics Research 7(6), 642-646 (2019)

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