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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 16 — Jul. 30, 2012
  • pp: 17271–17280

THz wave propagation in two-dimensional metallic photonic crystal with mechanically tunable photonic-bands

Jiro Kitagawa, Mitsuhiro Kodama, Shingo Koya, Yusaku Nishifuji, Damien Armand, and Yutaka Kadoya  »View Author Affiliations

Optics Express, Vol. 20, Issue 16, pp. 17271-17280 (2012)

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Transmission and dispersion relation of THz waves in two-dimensional photonic crystal (PC) composed of metal rods are studied by using finite-difference time-domain simulation and THz time-domain spectroscopy measurement. The PC is embedded in a parallel metal plate waveguide with an air gap between the PC and one of the plates. The photonic-band-gap well-defined at small air gap narrows systematically with opening the air gap and disappears when the air gap is 2 ∼ 3 times the rod height, where the two-dimensional nature of PC is destroyed. The mechanical tunability of photonic band structure would be useful in functional THz device.

© 2012 OSA

OCIS Codes
(160.5298) Materials : Photonic crystals
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Photonic Crystals

Original Manuscript: March 14, 2012
Revised Manuscript: July 5, 2012
Manuscript Accepted: July 5, 2012
Published: July 16, 2012

Jiro Kitagawa, Mitsuhiro Kodama, Shingo Koya, Yusaku Nishifuji, Damien Armand, and Yutaka Kadoya, "THz wave propagation in two-dimensional metallic photonic crystal with mechanically tunable photonic-bands," Opt. Express 20, 17271-17280 (2012)

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