Journal ArticleDOI
Guided wave characteristics of metal-clad graded-index planar optical waveguides: Analytical approach
S.J. Al-Bader,H.A. Jamid +1 more
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TLDR
In this article, a perturbative method was proposed to solve the complex eigenvalue equations of metal-clad graded-index waveguides, which is suited to the class of waveguide in which the guided field is described analytically.Abstract:
The complex eigenvalue equations of metal-clad graded-index waveguides are generally solved by numerical methods. The role of waveguide and material parameters in determining mode dispersion and attenuation becomes difficult to elucidate. We describe a perturbative method of solution which is suited to the class of waveguide in which the guided field is described analytically. Mode dispersion and attenuation are explicitly obtained. Applications to three commonly used waveguide models demonstrate the accuracy of our approach in comparison to numerically obtained results.read more
Citations
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Journal ArticleDOI
An efficient method for computing optical waveguides with discontinuous refractive index profiles using spectral collocation method with domain decomposition
TL;DR: In this paper, an accurate and efficient solution method using spectral collocation method with domain decomposition is proposed for computing optical waveguides with discontinuous refractive index profiles, which divides the usual single domain into a few subdomains at the interfaces of discontinuous index profiles.
Journal ArticleDOI
Guided-wave characteristics of optical graded-index planar waveguides with metal cladding: a simple analysis method
Wei-Yu Lee,Sung-Yuen Wang +1 more
TL;DR: In this article, a method of calculating complex propagation constants for metal-clad graded-index waveguides under very general but weakly guiding conditions is proposed, based on Galerkin's formalism using trigonometric basis functions.
Journal ArticleDOI
Simulation of Small-Pitch HgCdTe Photodetectors
Marco Vallone,Michele Goano,Francesco Bertazzi,Giovanni Ghione,W. Schirmacher,Stefan Hanna,H. Figgemeier +6 more
TL;DR: In this article, the authors combined three-dimensional optical and electrical simulations of long-wavelength infrared HgCdTe FPAs, with 3μm, 5μm and 10μm pitch.
Journal ArticleDOI
Metal-clad multilayer dielectric waveguide: accurate perturbation analysis
TL;DR: In this article, an accurate analysis of the perturbation methods of propagation constants and attenuation coefficients of TE and TM modes in an asymmetric metal/dielectric/dieslectric layer structure and four-layer metal-clad waveguides is presented.
Journal ArticleDOI
Analysis of metal-clad optical waveguide polarizers by the vector beam propagation method
Lizhong Sun,Gar Lam Yip +1 more
TL;DR: The attenuation characteristics of a metal-clad planar optical waveguide polarizer are computed by a modified finite-difference beam propagation method, taking into consideration the complex refractive indices of the metals used and the vector characteristics of the guided mode.
References
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Journal ArticleDOI
Characteristics of Optical Guided Modes in Lossy Waveguides
TL;DR: A generalized procedure is presented that permits an accurate description of metal boundaries at optical frequencies and it is found that, with increasing buffer thickness, TM(N) modes undergo a continuous transformation to becomeTM(N+1).
Journal ArticleDOI
Metal-clad planar dielectric waveguide for integrated optics*
John N. Polky,Gordon L. Mitchell +1 more
TL;DR: In this article, a metal-clad four-layer thin-film optical waveguide is presented, where the authors calculate the guided-wave losses as functions of isolation-layer thickness, type of metal, and isolation layer refractive index, and find that the TM polarized waves exhibit an absorption peak as a function of isolation thickness.
Journal ArticleDOI
Propagation losses in metal-film-substrate optical waveguides
E. Garmire,H. Stoll +1 more
TL;DR: In this article, the propagation losses in metal-film-substrate two-dimensional optical waveguides are calculated and the mode-dependent loss can make efficient mode analyzers, useful for integrated optics modulation schemes.
Journal ArticleDOI
Diffused optical waveguides with exponential profile: effects of metal-clad and dielectric overlay.
Talal Findakly,Chin-Lin Chen +1 more
TL;DR: The effects of metal and dielectric film overlays on the propagation of TE and TM modes in diffused LiNbO(3) optical waveguides with expontential profile are investigated.
Journal ArticleDOI
Propagation Losses of Guided Modes in an Optical Graded-Index Slab Waveguide with Metal Cladding
TL;DR: In this article, the attenuation constant of TE and TM in a graded-index slab waveguide (GISW) with metal cladding was analyzed and shown to be proportional to the ratio (Delta epsilon/sub i/δ/Δ/d/sub 0) of the diffusion depth in free space.
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