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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 17, Iss. 4 — Apr. 1, 2000
  • pp: 600–606

Photonic bandgap optimization in inverted fcc photonic crystals

Marcel Doosje, Bernhard J. Hoenders, and Jasper Knoester  »View Author Affiliations


JOSA B, Vol. 17, Issue 4, pp. 600-606 (2000)
http://dx.doi.org/10.1364/JOSAB.17.000600


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Abstract

We present results of photonic band-structure calculations for inverted photonic crystal structures. We consider a structure of air spheres in a dielectric background, arranged in an fcc lattice, with a cylindrical tunnel connecting each pair of neighboring spheres. We derive (semi)analytical expressions for the Fourier coefficients of the dielectric susceptibility, which are used as input in a standard plane-wave expansion method. We optimize the width of the photonic bandgap by applying a gradient search method and varying two geometrical parameters in the system: the ratios R/a and Rc/R, where a is the lattice constant, R is the sphere radius, and Rc is the cylinder radius. It follows from our calculations that the maximal gap width in this type of photonic-crystal structure with air spheres and cylinders in silicon is Δω/ω0=9.59%.

© 2000 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(160.4670) Materials : Optical materials
(160.4760) Materials : Optical properties
(260.2030) Physical optics : Dispersion
(260.2110) Physical optics : Electromagnetic optics

Citation
Marcel Doosje, Bernhard J. Hoenders, and Jasper Knoester, "Photonic bandgap optimization in inverted fcc photonic crystals," J. Opt. Soc. Am. B 17, 600-606 (2000)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-17-4-600

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