High-order bandgaps in one-dimensional photonic crystals

G. V. Morozov, F. Placido

Research output: Contribution to journalArticle

Abstract

Bandgaps, including high-order ones, of one-dimensional photonic crystals are analysed. Accurate analytical expressions for band edges for both s and p polarized light are derived. As a consequence, the conditions for bandgap closing are obtained in a simple analytical form. The derivation is based on a perturbative expansion of the dispersion equation using a new parameter which remains small around the band edges of all physically feasible one-dimensional photonic crystals.
Original languageEnglish
Article number045101
JournalJournal of Optics
Volume12
Issue number4
DOIs
Publication statusPublished - Apr 2010

Keywords

  • bi-layer photonic crystal
  • bandgaps
  • perturbative expansion of dispersion equation

Cite this

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title = "High-order bandgaps in one-dimensional photonic crystals",
abstract = "Bandgaps, including high-order ones, of one-dimensional photonic crystals are analysed. Accurate analytical expressions for band edges for both s and p polarized light are derived. As a consequence, the conditions for bandgap closing are obtained in a simple analytical form. The derivation is based on a perturbative expansion of the dispersion equation using a new parameter which remains small around the band edges of all physically feasible one-dimensional photonic crystals.",
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High-order bandgaps in one-dimensional photonic crystals. / Morozov, G. V.; Placido, F.

In: Journal of Optics, Vol. 12, No. 4, 045101, 04.2010.

Research output: Contribution to journalArticle

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AU - Morozov, G. V.

AU - Placido, F.

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AB - Bandgaps, including high-order ones, of one-dimensional photonic crystals are analysed. Accurate analytical expressions for band edges for both s and p polarized light are derived. As a consequence, the conditions for bandgap closing are obtained in a simple analytical form. The derivation is based on a perturbative expansion of the dispersion equation using a new parameter which remains small around the band edges of all physically feasible one-dimensional photonic crystals.

KW - bi-layer photonic crystal

KW - bandgaps

KW - perturbative expansion of dispersion equation

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DO - 10.1088/2040-8978/12/4/045101

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