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New garnet films for magneto-optical photonic crystals
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Condensed Matter Theory.ORCID iD: 0000-0001-8774-9302
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Condensed Matter Theory.
2005 (English)In: Magneto-Optical Materials For Photonics and Recording / [ed] Ando, K; Challener, W; Gambino, R; Levy, M, WARRENDALE: MATERIALS RESEARCH SOCIETY , 2005, Vol. 834, 47-52 p.Conference paper, Published paper (Refereed)
Abstract [en]

Epitaxial La3Ga5O12 (LGG) garnet films and Bi3Fe5O12/La3Ga5O12 (BIG/LGG) heteroepitaxial structures have been synthesized on Gd3Ga5O12(GGG,111) single crystal. LGG films were grown by Pulsed Laser Deposition (PLD) technique whereas rf-magnetron sputtering was used to grow BIG films. We demonstrate LGG is a promising material to be integrated with a giant Faraday rotator Bi3Fe5O12 in magneto-optical photonic crystals. LGG has a lattice constant 12.772 angstrom that is bigger than that in GGG (12.384 angstrom) and closer to that in BIG (12.626 angstrom). Heteroepitaxial Bi3Fe5O12(2 mu m)/La3Ga5O12(300nm) structures grown on the GGG(111) single crystal show the Faraday rotation as high as 5.74 deg/mu m compared to 5.46 deg/mu m in BIG/GGG at lambda = 655 nm. Fitting LGG reflectivity spectra to Fresnel formulas yields LGG refractive index n = 1.981 compared to 1.963 in GGG at 655 nm. Dispersion of LGG refraction index follows Sellmeier formula n(2) = 1 + 2.78/[1 - (138nm/lambda)(2)] in the range from 400 nm to 1000 nm.

Place, publisher, year, edition, pages
WARRENDALE: MATERIALS RESEARCH SOCIETY , 2005. Vol. 834, 47-52 p.
Series
MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS, ISSN 0272-9172 ; 834
Keyword [en]
imensional magnetophotonic crystals
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-42999ISI: 000228267100004Scopus ID: 2-s2.0-20344401798ISBN: 1-55899-782-2 (print)OAI: oai:DiVA.org:kth-42999DiVA: diva2:447758
Conference
Symposium on Magneto-Optical Materials for Photonics and Recording held at the 2004 MRS Fall Meeting. Boston, MA. NOV 29-DEC 29, 2004
Note
QC 20111013Available from: 2011-10-13 Created: 2011-10-13 Last updated: 2011-10-13Bibliographically approved

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Khartsev, Sergiy

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