Anisotropy of weak light scattering in thin opal films

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Date
2008-05-13
Authors
Romanov, Sergei G.
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AIP Publishing
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Abstract
The forward and backward light scattering that accompanied the almost ballistic light propagation in opal-based three-dimensional photonic crystal (PhC) has been experimentally studied. The light path memory and the high anisotropy of scattering have been associated with low-order scattering at large-scale crystal defects. The strong backscattered light intensity has been linked to the uncoupled light at a PhC surface. The exponent of power-law approximation of angle diagrams of the scattered light intensity has been suggested as a measure of the scattering anisotropy. The scattering anisotropy spectra have demonstrated that in a vicinity to the first photonic bandgap, the lower directionality of the forward scattering is complemented by the higher directionality of the backward scattering.
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Keywords
Photonic crystals , Optical-properties , Thickness , Light scattering , Visible spectra , Opal , Light diffraction , Anisotropy
Citation
Romanov, S. G. (2008) 'Anisotropy of weak light scattering in thin opal films', Journal of Applied Physics, 103(9), pp. 093117. doi: 10.1063/1.2917224
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© 2008 American Institute of Physics, This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Romanov, S. G. (2008) 'Anisotropy of weak light scattering in thin opal films', Journal of Applied Physics, 103(9), pp. 093117 and may be found at http://aip.scitation.org/doi/abs/10.1063/1.2917224