High-efficiency antireflection structures for terahertz self-collimating photonic crystals
JOSA B, Vol. 26, Issue 11, pp. 1967-1974 (2009)
http://dx.doi.org/10.1364/JOSAB.26.001967
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Abstract
We present two types of antireflection structures for two-dimensional photonic crystals of square lattice air holes in silicon, which are embedded in homogeneous background media. One type consists of rows of air holes, and the other consists of air slots that are introduced into the photonic crystal interfaces. The finite-difference time-domain simulations show that the terahertz waves couple efficiently into and out of the self-collimating photonic crystals with the designed antireflection structures applied. The proposed antireflection structures can bring significant improvements in coupling efficiency for compact terahertz devices based on self-collimating photonic crystals.
© 2009 Optical Society of America
OCIS Codes
(260.3090) Physical optics : Infrared, far
(310.1210) Thin films : Antireflection coatings
(230.5298) Optical devices : Photonic crystals
ToC Category:
Photonic Crystals
History
Original Manuscript: July 10, 2009
Manuscript Accepted: August 21, 2009
Published: October 5, 2009
Citation
Jong-Moon Park, Sun-Goo Lee, Hae Yong Park, Jae-Eun Kim, and Myung-Hyun Lee, "High-efficiency antireflection structures for terahertz self-collimating photonic crystals," J. Opt. Soc. Am. B 26, 1967-1974 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-11-1967
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