Polarization-Insensitive Hybrid Plasmonic Waveguide Design for Evanescent Field Absorption Gas Sensor

作     者：Nikolay Lvovich Kazanskiy Svetlana Nikolaevna Khonina Muhammad Ali Butt Nikolay Lvovich KAZANSKIY;Svetlana Nikolaevna KHONINA;Muhammad Ali BUTT

作者机构：Department of Technical CyberneticsSamara National Research UniversityMoskovskoye Shosse 34Samara443086Russia Institute of RAS-Branch of the FSRC“Crystallography and Photonics”RASMolodogvardeiskaya 151Samara443001Russia Institute of Microelectronics and OptoelectronicsWarsaw University of TechnologyKoszykowa 75Warszawa00-662Poland 

基　　金：This work was financially supported by the Russian Foundation for Basic Research(Grant No.16-29-09528_ofi_m)for numerical calculations by the Ministry of Science and Higher Education within the State assignment FSRC《Crystallography and Photonics》RAS(Grant No.007-GZ/Ch3363/26)for theoretical results 

出 版 物：《Photonic Sensors》 (光子传感器（英文版）)

年 卷 期：2021年第11卷第3期

页      码：279-290页

摘      要：We propose a polarization-insensitive design of a hybrid plasmonic waveguide(HPWG)optimized at the 3.392µm wavelength which corresponds to the absorption line of methane *** waveguide design is capable of providing high mode sensitivity(Smode)and evanescent field ratio(EFR)for both transverse electric(TE)and transverse magnetic(TM)hybrid *** modal analysis of the waveguide is performed via 2-dimension(2D)and 3-dimension(3D)finite element methods(FEMs).At optimized waveguide parameters,Smode and EFR of 0.94 and 0.704,can be obtained for the TE hybrid mode,respectively,whereas the TM hybrid mode can offer Smode and EFR of 0.86 and 0.67,*** TE and TM hybrid modes power dissipation of~3 dB can be obtained for a 20-µm-long hybrid plasmonic waveguide at the 60%gas *** believe that the highly sensitive waveguide scheme proposed in this work overcomes the limitation of the polarization controlled light and can be utilized in gas sensing applications.

主 题 词：Hybrid plasmonic waveguide finite element method methane gas evanescent field absorption gas sensor polarization-insensitive 

学科分类：07[理学] 080202[080202] 08[工学] 070204[070204] 0802[工学-机械学] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1007/s13320-020-0601-6

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