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Proceedings Paper

Aluminum oxynitride rugate filters grown by reactive rf sputtering
Author(s): Zhenhui Gou; Francis Placido
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Paper Abstract

Aluminium oxynitride of graded-index films in which the refractive index changes continuously with thickness over the range 1.56 - 1.97 have been produced by reactive RF sputtering. Optical properties and other characteristics with deposition parameters have been investigated by Fractional Factorial Designs. We showed that the optical density of laser rejection filters can be made close to 5 and rejection wavelength can be chosen from 300 nm to infrared, coupled with good optical properties, hardness and adherence of these films. This work also showed that Factorial Design is a very efficient way to investigate or optimize the sputtering conditions.

Paper Details

Date Published: 29 November 2000
PDF: 4 pages
Proc. SPIE 4086, Fourth International Conference on Thin Film Physics and Applications, (29 November 2000); doi: 10.1117/12.408382
Show Author Affiliations
Zhenhui Gou, Univ. of Paisley (United Kingdom)
Francis Placido, Univ. of Paisley (United Kingdom)


Published in SPIE Proceedings Vol. 4086:
Fourth International Conference on Thin Film Physics and Applications

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