Fucusing concave lens using photonic crystals with magnetic materials

Shieh Yueh Yang, Chin Yih Hong, Hong Chang Yang

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The guided modes lying in the upper gap-edge band in the photonic band structure of photonic crystals have negative values of refractive index. This feature generates many interesting optical phenomena, and some spectacular photonic devices such as focusing slabs have been developed. We report the design of a photonic-crystal, planoconcave lens for focusing incident parallel light, and theoretically analyze the chromatic aberrations for TM and TE modes. In addition to dielectric photonic crystals, the chromatic aberration of a magnetic photonic-crystal planoconcave lens was investigated because the magnetic permeability may also contribute to the periodic index contrast in photonic crystals, especially at long wavelengths. A significant difference was found in the chromatic aberration for a TM mode propagating in a dielectric than in a magnetic photonic-crystal planoconeave lens.

Original languageEnglish
Pages (from-to)956-959
Number of pages4
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Volume23
Issue number4
DOIs
Publication statusPublished - 2006 Apr

Fingerprint

Magnetic materials
Photonic crystals
magnetic materials
Lenses
lenses
photonics
Aberrations
crystals
aberration
Magnetic permeability
Photonic devices
Band structure
Photonics
Refractive index
Wavelength
slabs
refractivity
magnetic permeability
wavelengths

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition

Cite this

Fucusing concave lens using photonic crystals with magnetic materials. / Yang, Shieh Yueh; Hong, Chin Yih; Yang, Hong Chang.

In: Journal of the Optical Society of America A: Optics and Image Science, and Vision, Vol. 23, No. 4, 04.2006, p. 956-959.

Research output: Contribution to journalArticle

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