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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 7 — Jul. 1, 2009
  • pp: 1450–1455

High-temperature metal coating for modification of photonic band edge position

Timothy A. Walsh, James A. Bur, Yong-Sung Kim, Toh-Ming Lu, and Shawn-Yu Lin  »View Author Affiliations


JOSA B, Vol. 26, Issue 7, pp. 1450-1455 (2009)
http://dx.doi.org/10.1364/JOSAB.26.001450


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Abstract

Atomic-layer-deposited iridium is coated onto three-dimensional tungsten woodpile photonic crystals to modify the optical properties of the structure. As the lattice constant of a metallic photonic bandgap structure decreases to the scale of the near-IR wavelengths, the band edge becomes pinned and cannot be pushed to shorter wavelengths because of limitations inherent in the material. With a thin coating of iridium, the band edge of a pinned tungsten lattice is pushed from 1.6 μ m to below 1 μ m . This shift in the reflectance band edge will be accompanied by a reduction in the absorptance of the structure in the 1 2 μ m range.

© 2009 Optical Society of America

OCIS Codes
(160.5293) Materials : Photonic bandgap materials
(050.5298) Diffraction and gratings : Photonic crystals

ToC Category:
Materials

History
Original Manuscript: March 4, 2009
Manuscript Accepted: May 14, 2009
Published: June 26, 2009

Citation
Timothy A. Walsh, James A. Bur, Yong-Sung Kim, Toh-Ming Lu, and Shawn-Yu Lin, "High-temperature metal coating for modification of photonic band edge position," J. Opt. Soc. Am. B 26, 1450-1455 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-7-1450

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