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Proceedings Paper

Diffusion-bonded composites of YAG single crystals
Author(s): Huai-Chuan Lee; Patrick L. Brownlie; Helmuth E. Meissner; Edward C. Rea Jr.
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Paper Abstract

Diffusion bonding of single crystal Nd:YAG with another Nd:YAG or undoped YAG involves precision polishing, assembly by optical contacting and heat treatment. Preliminary data on bonding kinetics indicate an approximate (time)1/5 dependence which describes bulk sintering. Optical homogeneity across the interface did not exhibit a discontinuity for composites of Nd:YAG/Nd:YAG while a step at the Nd:YAG/undoped YAG interface is assumed to be due to a difference in refractive index. Parallel to the interface, stress birefringence values of up to about 5 nm/cm have been observed for Nd:YAG/Nd:YAG and about 20 nm/cm for Nd:YAG/undoped YAG. Corresponding values perpendicular to the interface are about 2 to 3 nm/cm for both types of composites. Reflectivity of about 3% and scattering of about 5% has been measured at 89 degrees incident angle while values below 0.03 and 0.05% respectively have been estimated for normal incidence.

Paper Details

Date Published: 29 July 1992
PDF: 9 pages
Proc. SPIE 1624, Laser-Induced Damage in Optical Materials: 1991, (29 July 1992); doi: 10.1117/12.60125
Show Author Affiliations
Huai-Chuan Lee, Hoya Optics, Inc. (United States)
Patrick L. Brownlie, Hoya Optics, Inc. (United States)
Helmuth E. Meissner, Hoya Optics, Inc. (United States)
Edward C. Rea Jr., Hoya Optics, Inc. (United States)

Published in SPIE Proceedings Vol. 1624:
Laser-Induced Damage in Optical Materials: 1991
Harold E. Bennett; Lloyd L. Chase; Arthur H. Guenther; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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