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Proceedings Paper

HfO2/SiO2 enhanced diamond turned aluminum mirrors for IR laser optics
Author(s): Jue Wang; Ronald W. Davis; Angela Q Wang; Horst Schreiber; Scott J. Wilkinson; Joseph C. Crifasi; Robert D. Felock
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Paper Abstract

HfO2/SiO2 multilayers were deposited on single point diamond turned aluminum substrates via modified reactive plasma ion assisted deposition to form a laser durable and environmentally stable dielectric enhanced IR mirror at a wavelength of 1064nm. The effect of the surface quality of the diamond turned aluminum on the optical performance of the dielectric enhanced mirror was assessed. A laser-induced damage threshold up to 11 J/cm2 was obtained from the enhanced aluminum mirror tested in pulse mode at 1064nm with a pulse length of 20ns and a repetition rate of 20Hz. Laser damage morphology was revealed by a scanning electron microscopy. The damage mechanism was attributed to nodule defects generated by particle embedded on the aluminum substrate surface.

Paper Details

Date Published: 6 December 2011
PDF: 10 pages
Proc. SPIE 8190, Laser-Induced Damage in Optical Materials: 2011, 819005 (6 December 2011); doi: 10.1117/12.900226
Show Author Affiliations
Jue Wang, Corning Speciality Materials (United States)
Ronald W. Davis, Corning Inc. (United States)
Angela Q Wang, Fairport High School (United States)
Horst Schreiber, Corning Speciality Materials (United States)
Scott J. Wilkinson, Corning Speciality Materials (United States)
Joseph C. Crifasi, Corning Speciality Materials (United States)
Robert D. Felock, Corning Speciality Materials (United States)

Published in SPIE Proceedings Vol. 8190:
Laser-Induced Damage in Optical Materials: 2011
Gregory J. Exarhos; Vitaly E. Gruzdev; Joseph A. Menapace; Detlev Ristau; M. J. Soileau, Editor(s)

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