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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 30, Iss. 21 — Nov. 1, 2005
  • pp: 2930–2932

Application of the homogenization approximation to rough one-dimensional photonic crystals

Karlene Rosera Maskaly, W. Craig Carter, Richard D. Averitt, and James L. Maxwell  »View Author Affiliations

Optics Letters, Vol. 30, Issue 21, pp. 2930-2932 (2005)

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As previously reported [Opt. Lett.29, 2791 (2004)], one-dimensional photonic crystals exhibit a decrease in their normal reflectivity if their interfaces are not flat. We show that the homogenization approximation accurately predicts this diminished optical response by comparing results with finite-difference time-domain (FDTD) simulations applied to the same roughened structures. Within the parameter range tested (rms roughness <20% and rms wavelengths <100% of the photonic crystal periodicity), the homogenization approximation accurately reproduces the reflectivities obtained by the FDTD simulations, which are much more computationally expensive.

© 2005 Optical Society of America

OCIS Codes
(230.1480) Optical devices : Bragg reflectors
(240.5770) Optics at surfaces : Roughness

ToC Category:
Optical Devices

Karlene Rosera Maskaly, W. Craig Carter, Richard D. Averitt, and James L. Maxwell, "Application of the homogenization approximation to rough one-dimensional photonic crystals," Opt. Lett. 30, 2930-2932 (2005)

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  1. K. R. Maskaly, G. R. Maskaly, W. C. Carter, and J. L. Maxwell, Opt. Lett.  29, 2791 (2004). [CrossRef]
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