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Asymmetric nonlinear-mode-conversion in an optical waveguide with PT symmetry被引量:2
《Frontiers of physics》2022年第5期183-190,共8页Changdong Chen Youwen Liu Lina Zhao Xiaopeng Hu Yangyang Fu 
This work was supported by the National Natural Science Foundation of China(Grant Nos.11904169 and 91950106);the Fundamental Research Funds for the Central Universities(Grant No.NE2022007);the Natural Science Foundation of Jiangsu Province(No.BK20190383);Postdoctoral Science Foundation of Jiangsu Province(No.2020Z224),China Postdoctoral Science Foundation(No.2020M681576);the Top-notch Academic Programs Project of Jiangsu Higher Education Institutions。
Asymmetric mode transformation in waveguide is of great significance for on-chip integrated devices with one-way effect,while it is challenging to achieve asymmetric nonlinear-mode-conversion(NMC)due to the limitation...
关键词:nonlinear mode conversion meta-grating PT symmetry optical waveguide 
Time-resolved imaging of mode-conversion process of terahertz transients in subwavelength waveguides
《Frontiers of physics》2019年第4期125-129,共5页Yao Lu Qiang Wu Qi Zhang Ri-De Wang Bin Zhang Wen-Juan Zhao Deng Zhang Hao Xiong Cheng-Liang Yang Ji-Wei Qi Chong-Pei Pan Jing-Jun Xu 
supported by the National Natural Science Foundation of China (NSFC)(Grant Nos. 61705013 and 61378018);the 111 Project (No. B07013);the Program for Changjiang Scholars and Innovative Research Team in University (No.IRT_13R29).
We studied the mode-conversion process of terahertz pulses from a planar subwavelength waveguide to a tilted rectangular subwavelength waveguide. An unusual wavefront rotation, which led to an extra conversion t ime, ...
关键词:ULTRAFAST phenomenon mode conversion SUBWAVELENGTH WAVEGUIDES TERAHERTZ waves 
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