文献类型：期刊文献

中文题名：Numerical Perspective of Second-Harmonic Generation of Circumferential Guided Wave Propagation in a Circular Tube

英文题名：Numerical Perspective of Second-Harmonic Generation of Circumferential Guided Wave Propagation in a Circular Tube

作者：Li, Ming-Liang[1];Deng, Ming-Xi[1];Zhu, Wu-Jun[2];Gao, Guang-Jian[1];Xiang, Yan-Xun[2]

机构：[1]Logist Engn Univ, Dept Phys, Chongqing 401331, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：33

期号：12

中文期刊名：Chinese Physics Letters

外文期刊名：CHINESE PHYSICS LETTERS

收录：CSTPCD;;EI(收录号：20220711660765);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000390931000019)】；CSCD:【CSCD2015_2016】；

基金：Supported by the National Natural Science Foundation of China under Grant Nos 11474361, 11474093 and 11274388.

语种：英文

中文关键词：of;on;mode;Numerical Perspective of Second-Harmonic Generation of Circumferential Guided Wave Propagation in a Circular Tube;in;SHG;is;for;that

外文关键词：Harmonic analysis - Guided electromagnetic wave propagation - Nonlinear optics - Finite element method

摘要：The effect of second-harmonic generation （SHG） by primary （fundamental） circumferential guided wave （CGW） propagation is investigated from a numerical standpoint. To enable that the second harmonic of the primary CGW mode can accumulate along the circumferential direction, an appropriate mode pair of primary and double frequency CGWs is chosen. Finite element simulations and evaluations of nonlinear CGW propagation are analyzed for the selected CGW mode pair. The numerical simulations performed directly demonstrate that the response of SHG is completely generated by the desired primary CGW mode that satisfies the condition of phase velocity matching at a specific driving frequency, and that the second harmonic of the primary CGW mode does have a cumulative effect with circumferential angles. The numerical perspective obtained yields an insight into the complicated physical process of SHG of primary CGW propagation unavailable previously.
The effect of second-harmonic generation (SHG) by primary (fundamental) circumferential guided wave (CGW) propagation is investigated from a numerical standpoint. To enable that the second harmonic of the primary CGW mode can accumulate along the circumferential direction, an appropriate mode pair of primary and double frequency CGWs is chosen. Finite element simulations and evaluations of nonlinear CGW propagation are analyzed for the selected CGW mode pair. The numerical simulations performed directly demonstrate that the response of SHG is completely generated by the desired primary CGW mode that satisfies the condition of phase velocity matching at a specific driving frequency, and that the second harmonic of the primary CGW mode does have a cumulative effect with circumferential angles. The numerical perspective obtained yields an insight into the complicated physical process of SHG of primary CGW propagation unavailable previously.