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Proceedings Paper

Kinematic and dynamic light scattering from 3D photonic crystals
Author(s): B. Brüser; U. Pietsch
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Paper Abstract

Laue diffraction with x-rays is common to determine symmetry and crystal structure of natural crystals. Extension of the method towards visible light failed so far due to lack of crystals in nature with lattice parameters in the range of visible light. Nowadays artificially three-dimensional crystals known as photonic crystals (PCs) are available. However, in contrast to x-rays diffraction from small crystals described by the kinematic scattering approach, scattering of visible light from PCs suffers from the large contrast and the tensor character of refractive index originating multiple scattering of probing light. In this paper we show the Laue scattering with visible light at PCs with internal refractive index contrast less then 1%. The Laue pattern shows colour separation and displays the crystal symmetry. Scattering curves of individual Laue spots taken with monochromatic light can be well described by kinematic scattering. Both results demonstrate the applicability of such crystals for spectral filtering.

Paper Details

Date Published: 25 September 2009
PDF: 16 pages
Proc. SPIE 7487, Optical Materials in Defence Systems Technology VI, 748709 (25 September 2009); doi: 10.1117/12.830620
Show Author Affiliations
B. Brüser, Univ. of Siegen (Germany)
U. Pietsch, Univ. of Siegen (Germany)


Published in SPIE Proceedings Vol. 7487:
Optical Materials in Defence Systems Technology VI
James G. Grote; François Kajzar; Roberto Zamboni, Editor(s)

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