Approaching quantitative optical diffraction analysis of crystal lattices in opal films

W. Khunsin; C. M. Sotomayor Torres; S. G. Romanov

doi:10.1117/12.780872

21 April 2008 Approaching quantitative optical diffraction analysis of crystal lattices in opal films

W. Khunsin, C. M. Sotomayor Torres, S. G. Romanov

Proceedings Volume 6989, Photonic Crystal Materials and Devices VIII; 69890K (2008) https://doi.org/10.1117/12.780872
Event: SPIE Photonics Europe, 2008, Strasbourg, France

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.

Citation Download Citation

W. Khunsin, C. M. Sotomayor Torres, and S. G. Romanov "Approaching quantitative optical diffraction analysis of crystal lattices in opal films", Proc. SPIE 6989, Photonic Crystal Materials and Devices VIII, 69890K (21 April 2008); https://doi.org/10.1117/12.780872

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