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Proceedings Article

Diffusion-bonded composites of YAG single crystals

[+] Author Affiliations
Huai-Chuan Lee, Patrick L. Brownlie, Helmuth E. Meissner, Edward C. Rea, Jr.

Hoya Optics, Inc. (USA)

Proc. SPIE 1624, Laser-Induced Damage in Optical Materials: 1991, 2 (July 29, 1992); doi:10.1117/12.60125
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From Conference Volume 1624

  • Laser-Induced Damage in Optical Materials: 1991
  • Harold E. Bennett; Lloyd L. Chase; Arthur H. Guenther; Brian E. Newnam; M. J. Soileau
  • Boulder, CO | October 23, 1991

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.

© (1992) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Huai-Chuan Lee ; Patrick L. Brownlie ; Helmuth E. Meissner and Edward C. Rea, Jr.
"Diffusion-bonded composites of YAG single crystals", Proc. SPIE 1624, Laser-Induced Damage in Optical Materials: 1991, 2 (July 29, 1992); doi:10.1117/12.60125; http://dx.doi.org/10.1117/12.60125


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