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Proceedings Paper

Optical characteristics of photonic crystals based on the fractional Talbot effect
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Paper Abstract

The Talbot effect refers to the self-imaging property of periodic structures illuminated by collimated, coherent light. Complex periodic and quasi-periodic irradiance distributions are formed in three-dimensional (3-D) space near the gratings through diffraction and interference. A wide variety of novel irradiance distributions can be synthesized through design of the grating structures. These irradiance distributions can be converted into dielectric structures through exposure of photosensitive materials and subsequent processing or, alternately, can serve as inspiration for photonic crystals to be fabricated through other techniques. In this paper, we explore the dispersion properties of a rhombus lattice photonic crystal structure inspired by the fractional Talbot effect. These "Talbot crystals" are used to demonstrate potential for broadband "all-angle" self-collimation for waveguide and optical multiplexing applications. Additional directions for future research will also be discussed.

Paper Details

Date Published: 16 February 2009
PDF: 10 pages
Proc. SPIE 7223, Photonic and Phononic Crystal Materials and Devices IX, 72230P (16 February 2009); doi: 10.1117/12.809453
Show Author Affiliations
Yi-Chen Chuang, The Univ. of North Carolina at Charlotte (United States)
Thomas J. Suleski, The Univ. of North Carolina at Charlotte (United States)

Published in SPIE Proceedings Vol. 7223:
Photonic and Phononic Crystal Materials and Devices IX
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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