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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 16 — Aug. 2, 2010
  • pp: 16302–16308

Anomalous refractive effects in honeycomb lattice photonic crystals formed by holographic lithography

G. Y. Dong, X. L. Yang, and L. Z. Cai  »View Author Affiliations

Optics Express, Vol. 18, Issue 16, pp. 16302-16308 (2010)

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We have investigated for the first time the anomalous refractive effects of a photonic crystal (PhC) formed by holographic lithography (HL) with triangular rods arranged in a honeycomb lattice in air. Possibilities of left-handed negative refraction and superlens are discussed for the case of TM2 band with the index contrast n = 3.4:1. In contrast to the conventional honeycomb PhC made of regular rods in air, the HL PhCs show left-handed negative refraction over a wider and higher frequency range with high transmissivity (>90%), and the effective indices quite close to −1 for a wide range of incident angles with a larger all-angle left-handed negative refraction (AALNR) frequency range (Δω/ω ≈14.8%). Calculations and FDTD simulations demonstrate the high-performance negative refraction properties can happen in the holographic structures for a wide filling ratio and can be modulated by changing the filling ratio easily.

© 2010 OSA

OCIS Codes
(090.2880) Holography : Holographic interferometry
(160.5298) Materials : Photonic crystals

ToC Category:
Photonic Crystals

Original Manuscript: April 26, 2010
Revised Manuscript: June 1, 2010
Manuscript Accepted: June 28, 2010
Published: July 19, 2010

G. Y. Dong, X. L. Yang, and L. Z. Cai, "Anomalous refractive effects in honeycomb lattice photonic crystals formed by holographic lithography," Opt. Express 18, 16302-16308 (2010)

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