Enhancement of photonic band gap in a disordered quarter-wave dielectric photonic crystal

C. J. Wu, Y. N. Rau, W. H. Han

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The enhancement of the photonic band gap in visible region for a disordered one-dimensional dielectric-dielectric photonic crystal (DDPC) is theoretically investigated. The DDPC is made of alternating two high/low-index quarter-wave dielectric layers stacked periodically. A disordered DDPC is modeled by randomly changing the real thicknesses, or, the optical lengths, of the two dielectrics. In a single disorder case, where the disorder only appears in one of the two constituents, it is found the photonic band gap can be preferably enhanced for the disordered high-index layer. In the double disorder stack, in which both the constituent layers are disordered, the photonic band gap can, however, be significantly enlarged. In addition, numerical results illustrate that a flat band gap can be obtained by the use of disorder in the optical length.

Original languageEnglish
Pages (from-to)27-36
Number of pages10
JournalProgress in Electromagnetics Research
Volume100
DOIs
Publication statusPublished - 2010 Jan 1

Fingerprint

Photonic band gap
Photonic crystals
photonics
augmentation
crystals
disorders
Energy gap

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Enhancement of photonic band gap in a disordered quarter-wave dielectric photonic crystal. / Wu, C. J.; Rau, Y. N.; Han, W. H.

In: Progress in Electromagnetics Research, Vol. 100, 01.01.2010, p. 27-36.

Research output: Contribution to journalArticle

@article{a5377a9b3a3a46d483eb69a53a6c17cd,
title = "Enhancement of photonic band gap in a disordered quarter-wave dielectric photonic crystal",
abstract = "The enhancement of the photonic band gap in visible region for a disordered one-dimensional dielectric-dielectric photonic crystal (DDPC) is theoretically investigated. The DDPC is made of alternating two high/low-index quarter-wave dielectric layers stacked periodically. A disordered DDPC is modeled by randomly changing the real thicknesses, or, the optical lengths, of the two dielectrics. In a single disorder case, where the disorder only appears in one of the two constituents, it is found the photonic band gap can be preferably enhanced for the disordered high-index layer. In the double disorder stack, in which both the constituent layers are disordered, the photonic band gap can, however, be significantly enlarged. In addition, numerical results illustrate that a flat band gap can be obtained by the use of disorder in the optical length.",
author = "Wu, {C. J.} and Rau, {Y. N.} and Han, {W. H.}",
year = "2010",
month = "1",
day = "1",
doi = "10.2528/PIER09111610",
language = "English",
volume = "100",
pages = "27--36",
journal = "Progress in Electromagnetics Research",
issn = "1070-4698",
publisher = "Electromagnetics Academy",

}

TY - JOUR

T1 - Enhancement of photonic band gap in a disordered quarter-wave dielectric photonic crystal

AU - Wu, C. J.

AU - Rau, Y. N.

AU - Han, W. H.

PY - 2010/1/1

Y1 - 2010/1/1

N2 - The enhancement of the photonic band gap in visible region for a disordered one-dimensional dielectric-dielectric photonic crystal (DDPC) is theoretically investigated. The DDPC is made of alternating two high/low-index quarter-wave dielectric layers stacked periodically. A disordered DDPC is modeled by randomly changing the real thicknesses, or, the optical lengths, of the two dielectrics. In a single disorder case, where the disorder only appears in one of the two constituents, it is found the photonic band gap can be preferably enhanced for the disordered high-index layer. In the double disorder stack, in which both the constituent layers are disordered, the photonic band gap can, however, be significantly enlarged. In addition, numerical results illustrate that a flat band gap can be obtained by the use of disorder in the optical length.

AB - The enhancement of the photonic band gap in visible region for a disordered one-dimensional dielectric-dielectric photonic crystal (DDPC) is theoretically investigated. The DDPC is made of alternating two high/low-index quarter-wave dielectric layers stacked periodically. A disordered DDPC is modeled by randomly changing the real thicknesses, or, the optical lengths, of the two dielectrics. In a single disorder case, where the disorder only appears in one of the two constituents, it is found the photonic band gap can be preferably enhanced for the disordered high-index layer. In the double disorder stack, in which both the constituent layers are disordered, the photonic band gap can, however, be significantly enlarged. In addition, numerical results illustrate that a flat band gap can be obtained by the use of disorder in the optical length.

UR - http://www.scopus.com/inward/record.url?scp=76749147036&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=76749147036&partnerID=8YFLogxK

U2 - 10.2528/PIER09111610

DO - 10.2528/PIER09111610

M3 - Article

AN - SCOPUS:76749147036

VL - 100

SP - 27

EP - 36

JO - Progress in Electromagnetics Research

JF - Progress in Electromagnetics Research

SN - 1070-4698

ER -