Improved Si-based coating materials for high power infrared lasers

Conference · Tue Dec 01 04:00:00 EST 1981

OSTI ID:5321089

Pawlewicz, W T; Martin, P M

Data are presented to demonstrate that alloying of Si with H during thin film coating deposition reduces coating absorption at important infrared laser wavelenghts as 1.06, 1.315 and 2.7 ..mu..m by more than an order of magnitude compared to pure Si coatings. These results contradict earlier beliefs that the presence of H in Si was undesirable because of its association with H/sub 2/O. It appears that absorption values approaching state-of-the-art for near-infrared coatings can now be obtained for a material with many attractive physical properties such as very high refractive index, outstanding hardness and scratch-resistance, glassy structure, non-hygroscopicity and general environmental stability and durability.

• Research Organization: Battelle Pacific Northwest Labs., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5321089
• Report Number(s): PNL-SA-9903; CONF-811199-1; ON: DE82014862
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
42 ENGINEERING
420300 -- Engineering-- Lasers-- (-1989)
FABRICATION
FILMS
HYDRIDES
HYDROGEN COMPOUNDS
LASER MATERIALS
LASERS
MATERIALS
MECHANICAL PROPERTIES
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
REFRACTION
SILANES
SILICON COMPOUNDS