Derivative free method for computing modes of multilayer planar waveguide

A technique to solve generalized dispersion equation of multilayer planar waveguide has been demonstrated to obtain all the expected guided modes. The solution is based on the derivative free method for computing the zeros of an analytical function in complex plane. The derivative free method extrac...

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Vydané v:Optical and quantum electronics Ročník 46; číslo 3; s. 423 - 438
Hlavní autori: Semwal, Girish, Rastogi, Vipul
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Boston Springer US 01.03.2014
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ISSN:0306-8919, 1572-817X
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Abstract A technique to solve generalized dispersion equation of multilayer planar waveguide has been demonstrated to obtain all the expected guided modes. The solution is based on the derivative free method for computing the zeros of an analytical function in complex plane. The derivative free method extracts the roots which are very close to actual zeros of the function. Roots are further refined using the robust iteration method to achieve the desired accuracy. Application of the proposed method has been verified by solving the modes of a variety of structures including lossless structure, leaky structure, quantum well waveguide, active waveguide, ARROW waveguide and metal clad waveguide. The method is efficient and computes all modes of planar waveguide with high accuracy.
AbstractList A technique to solve generalized dispersion equation of multilayer planar waveguide has been demonstrated to obtain all the expected guided modes. The solution is based on the derivative free method for computing the zeros of an analytical function in complex plane. The derivative free method extracts the roots which are very close to actual zeros of the function. Roots are further refined using the robust iteration method to achieve the desired accuracy. Application of the proposed method has been verified by solving the modes of a variety of structures including lossless structure, leaky structure, quantum well waveguide, active waveguide, ARROW waveguide and metal clad waveguide. The method is efficient and computes all modes of planar waveguide with high accuracy.
Author Semwal, Girish
Rastogi, Vipul
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  surname: Rastogi
  fullname: Rastogi, Vipul
  organization: Department of Physics, Indian Institute of Technology Roorkee
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Keywords Derivative free method
Planar waveguide
Modes of waveguide
Argument principle method
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Snippet A technique to solve generalized dispersion equation of multilayer planar waveguide has been demonstrated to obtain all the expected guided modes. The solution...
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SubjectTerms Characterization and Evaluation of Materials
Computer Communication Networks
Electrical Engineering
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Title Derivative free method for computing modes of multilayer planar waveguide
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