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Optics Letters

Optics Letters


  • Vol. 29, Iss. 23 — Dec. 1, 2004
  • pp: 2791–2793

Diminished normal reflectivity of one-dimensional photonic crystals due to dielectric interfacial roughness

Karlene Rosera Maskaly, Garry R. Maskaly, W. Craig Carter, and James L. Maxwell  »View Author Affiliations

Optics Letters, Vol. 29, Issue 23, pp. 2791-2793 (2004)

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Dielectric reflectors that are periodic in one dimension, also known as one-dimensional photonic crystals (1DPCs), have become extremely useful tools in the optics industry due to the presence of wavelength-tunable photonic bandgaps. However, little is known about the practical effects of manufacturing defects, such as interfacial roughness, on this technologically useful property of 1DPCs. We employ a finite-difference time-domain code to gain further insight into the effect of interfacial roughness on the reflectivity of quarter-wave-tuned 1DPCs in the center of the bandgap at normal incidence. This provides an estimate of the magnitude of the effect of the roughness for even the most-robust incidence conditions.

© 2004 Optical Society of America

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

Karlene Rosera Maskaly, Garry R. Maskaly, W. Craig Carter, and James L. Maxwell, "Diminished normal reflectivity of one-dimensional photonic crystals due to dielectric interfacial roughness," Opt. Lett. 29, 2791-2793 (2004)

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