Analysis of Metal-Clad TM-Pass Polarizers using the
Method of Lines.
Prof. Hussain A. Jamid
Department, KFUPM, Saudi Arabia.
Optical Waveguides, Waveguide Gratings,
Metal-Clad Waveguides, Higher-Order Approximations,
Method of Lines (MOL), Perfectly Matched Layer (PML),
TM-Pass Polarizer, TE-Pass Polarizer, Reflection
Mode Polarizer, Transmission Mode Polarizer.
In this research work, two types of
metal-clad TM-pass polarizers, transmission mode
polarizer and reflection mode polarizer, are
studied. In the first type, the TM polarized waves
are transmitted with low-loss, while TE polarized
wave are transmitted with very high loss. The second
type of polarizer has corrugations in its structure.
It functions by reflecting TM waves with low-loss,
while the reflected TE polarized waves are highly
attenuated. The reflection and transmission spectra
of the reflection mode polarizer are calculated for
different high-index buffer layer thicknesses,
different number of grating periods, different
groove depths and different length of metal-clad
section. The Method of Lines (MOL) with the
Cascading and Doubling Algorithm is applied to model
the multi-layer waveguide structure with periodic
corrugations. Higher-order approximations of the
second derivative operator with appropriate
interface conditions are used. The Perfectly Matched
Layer (PML) absorber is used to absorb the radiated
fields due to the presence of longitudinal
Dielectric Slab Optical Waveguide
The Method of Lines
Absorbing Boundary Conditions and Waveguide
Analysis of Metal-Clad Waveguides
The Cascading and Doubling Algorithm: Application to
Periodic Waveguide Gratings
A: Higher-Order Approximation.