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Proceedings Paper

Photonic crystal properties of opal-hematite and opal-magnetite films
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Paper Abstract

Photonic crystal and structural properties of synthesized opal films filled with the iron oxides: hematite (α-Fe2O3) and magnetite (Fe3O4) were investigated by means of scanning electron microscopy, X-ray diffraction, and Fourier transforme spectroscopy. Hematite was infiltrated into opal film pores without depositing the oxide onto the outer film surface by the method of lateral infiltration under capillary forces from a liquid precursor. The synthesis of Fe3O4 was performed in the opal pores using α→Fe2O3 as a precursor. The evolution of Bragg diffraction line from the (111) planes of the f.c.c lattice of the opal-α-Fe2O3 film with a various filling degree was studied. The maximum filling degrees both of opal- α-Fe2O3 and of opal-Fe3O4 films, estimated from the reflection spectra, appeared to be similar and equal to ~ 55% of the pore volume. The reversible chemical transformation of fillers in opal pores α-Fe2O3→Fe3O4→α-Fe2O3 changes only the filler dielectric constant but does not practically produce structural defects that could affect the photonic crystal properties of the composite.

Paper Details

Date Published: 18 November 2008
PDF: 6 pages
Proc. SPIE 7138, Photonics, Devices, and Systems IV, 713816 (18 November 2008); doi: 10.1117/12.818010
Show Author Affiliations
S. A. Grudinkin, A. F. Ioffe Physico-Technical Institute (Russian Federation)
S. F. Kaplan, A. F. Ioffe Physico-Technical Institute (Russian Federation)
N. F. Kartenko, A. F. Ioffe Physico-Technical Institute (Russian Federation)
D. A. Kurdyukov, A. F. Ioffe Physico-Technical Institute (Russian Federation)
V. G. Golubev, A. F. Ioffe Physico-Technical Institute (Russian Federation)


Published in SPIE Proceedings Vol. 7138:
Photonics, Devices, and Systems IV
Pavel Tománek; Dagmar Senderáková; Miroslav Hrabovský, Editor(s)

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