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Proceedings Paper

Approaching quantitative optical diffraction analysis of crystal lattices in opal films
Author(s): W. Khunsin; C. M. Sotomayor Torres; S. G. Romanov
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Paper Abstract

Crystal ordering of opal-based self-assembled photonic crystals fabricated by vertical drawing deposition technique has been examined by the angle-resolved transmission spectroscopy. Assuming that minima in transmission spectra register the diffraction resonances occurring at different planes of the crystal lattice, the angle dispersions of these resonances reflect the ordering of the crystal lattice. Since such dispersions obtained as a function of the angle of light incidence cannot provide quantitative estimate of the crystal ordering without comparison to the adopted standard, we suggested to analyse the diffraction resonances as a function of the lattice rotation. This method allows to quantify the lattice ordering by the accuracy of the repetition of similar diffraction features upon the azimuth angle.

Paper Details

Date Published: 21 April 2008
PDF: 10 pages
Proc. SPIE 6989, Photonic Crystal Materials and Devices VIII, 69890K (21 April 2008); doi: 10.1117/12.780872
Show Author Affiliations
W. Khunsin, Tyndall National Institute, Univ. College Cork (Ireland)
C. M. Sotomayor Torres, Tyndall National Institute, Univ. College Cork (Ireland)
Catalan Institute for Research and Advanced Studies (Spain)
Catalan Institute of Nanotechnology (Spain)
S. G. Romanov, Tyndall National Institute, Univ. College Cork (Ireland)
Ioffe Physical Technical Institute (Russia)

Published in SPIE Proceedings Vol. 6989:
Photonic Crystal Materials and Devices VIII
Richard M. De La Rue; Ceferino López; Michele Midrio; Pierre Viktorovitch, Editor(s)

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