Propagation of self-collimated ultrashort pulses in a hybrid photonic crystal
- Authors
- Chung, K. B.
- Issue Date
- 15-Aug-2011
- Publisher
- OPTICAL SOC AMER
- Citation
- OPTICS EXPRESS, v.19, no.17, pp.15705 - 15710
- Journal Title
- OPTICS EXPRESS
- Volume
- 19
- Number
- 17
- Start Page
- 15705
- End Page
- 15710
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/19826
- DOI
- 10.1364/OE.19.015705
- ISSN
- 1094-4087
- Abstract
- 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. (C) 2011 Optical Society of America
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Collections - College of Engineering > School of Electronic & Electrical Engineering > 1. Journal Articles
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