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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 17 — Aug. 15, 2011
  • pp: 15705–15710

Propagation of self-collimated ultrashort pulses in a hybrid photonic crystal

K. B. Chung  »View Author Affiliations

Optics Express, Vol. 19, Issue 17, pp. 15705-15710 (2011)

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We report the propagation of self-collimated ultrashort Gaussian pulses in a hybrid photonic crystal structure, in which broadband super-collimation was proposed recently. To choose their center frequencies, we compute group velocity dispersion and third-order dispersion as a function of frequency. Using the finite-difference time-domain method, we simulate the propagation of the pulses at two frequencies, one for zero group-velocity-dispersion and the other for optimized super-collimation. It is shown that the pulses nearly retain their transverse and longitudinal shapes during propagation over a long distance, and that third-order dispersion affects the pulse shape at zero group-velocity-dispersion frequency.

© 2011 OSA

OCIS Codes
(050.1755) Diffraction and gratings : Computational electromagnetic methods
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(050.5298) Diffraction and gratings : Photonic crystals

ToC Category:
Photonic Crystals

Original Manuscript: June 6, 2011
Revised Manuscript: July 17, 2011
Manuscript Accepted: July 18, 2011
Published: August 1, 2011

K. B. Chung, "Propagation of self-collimated ultrashort pulses in a hybrid photonic crystal," Opt. Express 19, 15705-15710 (2011)

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