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Optical Materials Express

Optical Materials Express

  • Editor: David Hagan
  • Vol. 4, Iss. 9 — Sep. 1, 2014
  • pp: 1794–1799

Thermo-optic properties of ceramic YAG at high temperatures

Hiroaki Furuse, Ryo Yasuhara, and Keijiro Hiraga  »View Author Affiliations

Optical Materials Express, Vol. 4, Issue 9, pp. 1794-1799 (2014)

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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%.

© 2014 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.6810) Lasers and laser optics : Thermal effects
(160.4760) Materials : Optical properties

ToC Category:
Laser Materials

Original Manuscript: June 12, 2014
Revised Manuscript: July 25, 2014
Manuscript Accepted: August 3, 2014
Published: August 7, 2014

Hiroaki Furuse, Ryo Yasuhara, and Keijiro Hiraga, "Thermo-optic properties of ceramic YAG at high temperatures," Opt. Mater. Express 4, 1794-1799 (2014)

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