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Proceedings Paper

Coherent effects and spectral selection of light in partially ordered mesoscopic media
Author(s): A. N. Ponyavina
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Paper Abstract

Here, we present the results of theoretical experimental studies of the light spectral selection due to the coherent multiple scattering into partially ordered mesoscopic disperse media. The role of coherent effects in random close-packages systems with short-range ordering is discussed. The concentration effects of whitening and darkening for optically soft particles are considered in terms of the amplitude-phase screen model. For close-packed monolayers of highly refracting particles the effects of coherent rescattering are analyzed using a quasi-crystalline approximation of the theory of multiple wave scattering and the radial particle distribution function obtained from the Percus-Yevick equation solution. The same theoretical approach being extended to periodic one- and 3D disperse systems describes the formation of forbidden photon zones in transmission spectra of photonic crystals. Ways of spectral properties controlling for ordered dielectric and metal nanostructures are proposed and analyzed. In addition, the theoretical description of their optical characteristics is developed. Results of quantitative calculations agree well with experimental data found for various types of scattering filters and coatings. The regularities obtained for photonic crystals seem to be fruitful for the creation of novel selective elements based on spatially ordered mesoscopic disperse systems with different structural organization.

Paper Details

Date Published: 31 May 2001
PDF: 12 pages
Proc. SPIE 4242, Saratov Fall Meeting 2000: Coherent Optics of Ordered and Random Media, (31 May 2001); doi: 10.1117/12.427736
Show Author Affiliations
A. N. Ponyavina, Institute of Molecular and Atomic Physics (Belarus)

Published in SPIE Proceedings Vol. 4242:
Saratov Fall Meeting 2000: Coherent Optics of Ordered and Random Media
Dmitry A. Zimnyakov, Editor(s)

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