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Updated: Aug 21, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Linear and nonlinear optical studies in photonic crystal alloys
Hanifi Tiryaki1, Koichi Baba, Przemyslaw P Markowicz
1Institute for Lasers, Photonics and Biophotonics, Department of Chemistry and Physics, University at Buffalo, The State University of New York, Buffalo, New York 14260, USA.
Abstract:
We report on linear transmittance and reflectance as well as on third-harmonic generation in photonic crystal alloys formed by various compositions of polystyrene and poly (methyl methacrylate) colloidal spheres of the same size. These photonic crystal alloys are structurally ordered but contain refractive-index disorder and thus provide a random variation of scattering potential. The stopgap shows a monotonic shift in wavelength as a function of composition that can be fitted by assuming an effective dielectric constant for the colloidal spheres. In each alloy a dramatic enhancement of third-harmonic generation is observed, always on the short-wavelength side of the stopgap.
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