Thermo-optic properties of ceramic YAG at high temperatures | Zendy

Hiroaki Furuse | Zendy; Ryo Yasuhara | Zendy; K. Hiraga | Zendy

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Thermo-optic properties of ceramic YAG at high temperatures

Author(s) -

Hiroaki Furuse,

Ryo Yasuhara,

K. Hiraga

Publication year - 2014

Publication title -

optical materials express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.925

H-Index - 66

ISSN - 2159-3930

DOI - 10.1364/ome.4.001794

Subject(s) - materials science , ceramic , optical materials , optoelectronics , optics , laser , composite material , physics

The thermo-optic coefficient dn/dT at 632.8 nm and thermal expansion coefficient α of transparent ceramic yttrium aluminum garnet (YAG) were measured between room temperature and 600 K. The data showed that dn/dT increases with temperature and α is in good agreement with that of single-crystal YAG. To the best of our knowledge, these are the first experimental data of the thermo-optic properties of highly transparent ceramic YAG above room temperature. We also present, using previously reported values measured below room temperature, fitting parameters for dn/dT that are valid over a wide temperature range (70–600 K) with an average error of 2.0%

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