Simulation of the diffraction characteristics of a one-dimensional dual-periodicity superlattice

Katherine E. Weaver, Akhlesh Lakhtakia

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The diffraction characteristics of a dual-periodicity superlattice-a diffraction grating whose unit cell contains two different regions, one homogeneous and the other periodically nonhomogeneous-were numerically simulated. After choosing the second region to have sinusoidally varying permittivity, the widely used rigorous coupled-wave approach was applied to compute the reflection and transmission efficiency spectrums. An extensive parametric study revealed that the dual-periodicity superlattice exhibits anomalies in the long-wavelength regime which can be considered to be resonance anomalies (RAs), which are distinct from the Rayleigh-Wood anomalies. Also, double-periodicity superlattices exhibit RAs at higher wavelengths than single-periodicity superlattices.

Original languageEnglish (US)
Pages (from-to)276-285
Number of pages10
JournalOptik
Volume119
Issue number6
DOIs
StatePublished - May 1 2008

Fingerprint

Superlattices
periodic variations
Diffraction
anomalies
Wavelength
Diffraction gratings
diffraction
superlattices
Wood
Permittivity
simulation
transmission efficiency
gratings (spectra)
wavelengths
permittivity
cells

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

@article{acf8de1a2f3a4a8bb88b82effc81241d,
title = "Simulation of the diffraction characteristics of a one-dimensional dual-periodicity superlattice",
abstract = "The diffraction characteristics of a dual-periodicity superlattice-a diffraction grating whose unit cell contains two different regions, one homogeneous and the other periodically nonhomogeneous-were numerically simulated. After choosing the second region to have sinusoidally varying permittivity, the widely used rigorous coupled-wave approach was applied to compute the reflection and transmission efficiency spectrums. An extensive parametric study revealed that the dual-periodicity superlattice exhibits anomalies in the long-wavelength regime which can be considered to be resonance anomalies (RAs), which are distinct from the Rayleigh-Wood anomalies. Also, double-periodicity superlattices exhibit RAs at higher wavelengths than single-periodicity superlattices.",
author = "Weaver, {Katherine E.} and Akhlesh Lakhtakia",
year = "2008",
month = "5",
day = "1",
doi = "10.1016/j.ijleo.2007.01.001",
language = "English (US)",
volume = "119",
pages = "276--285",
journal = "Optik",
issn = "0030-4026",
publisher = "Urban und Fischer Verlag Jena",
number = "6",

}

Simulation of the diffraction characteristics of a one-dimensional dual-periodicity superlattice. / Weaver, Katherine E.; Lakhtakia, Akhlesh.

In: Optik, Vol. 119, No. 6, 01.05.2008, p. 276-285.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Simulation of the diffraction characteristics of a one-dimensional dual-periodicity superlattice

AU - Weaver, Katherine E.

AU - Lakhtakia, Akhlesh

PY - 2008/5/1

Y1 - 2008/5/1

N2 - The diffraction characteristics of a dual-periodicity superlattice-a diffraction grating whose unit cell contains two different regions, one homogeneous and the other periodically nonhomogeneous-were numerically simulated. After choosing the second region to have sinusoidally varying permittivity, the widely used rigorous coupled-wave approach was applied to compute the reflection and transmission efficiency spectrums. An extensive parametric study revealed that the dual-periodicity superlattice exhibits anomalies in the long-wavelength regime which can be considered to be resonance anomalies (RAs), which are distinct from the Rayleigh-Wood anomalies. Also, double-periodicity superlattices exhibit RAs at higher wavelengths than single-periodicity superlattices.

AB - The diffraction characteristics of a dual-periodicity superlattice-a diffraction grating whose unit cell contains two different regions, one homogeneous and the other periodically nonhomogeneous-were numerically simulated. After choosing the second region to have sinusoidally varying permittivity, the widely used rigorous coupled-wave approach was applied to compute the reflection and transmission efficiency spectrums. An extensive parametric study revealed that the dual-periodicity superlattice exhibits anomalies in the long-wavelength regime which can be considered to be resonance anomalies (RAs), which are distinct from the Rayleigh-Wood anomalies. Also, double-periodicity superlattices exhibit RAs at higher wavelengths than single-periodicity superlattices.

UR - http://www.scopus.com/inward/record.url?scp=41349109084&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=41349109084&partnerID=8YFLogxK

U2 - 10.1016/j.ijleo.2007.01.001

DO - 10.1016/j.ijleo.2007.01.001

M3 - Article

VL - 119

SP - 276

EP - 285

JO - Optik

JF - Optik

SN - 0030-4026

IS - 6

ER -