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Proceedings Paper

Amorphous fluoropolymer: next-generation optical coating candidate
Author(s): Robert Chow; Gary E. Loomis; Maura K. Spragge; Edward F. Lindsey; Frank Rainer; Richard L. Ward; Mark R. Kozlowski
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Paper Abstract

Anti-reflective (AR) and high reflector (HR) optical coatings were made by physical vapor deposition (PVD) of Teflon AF2400, a perfluorinated amorphous polymer. The AR had the highest laser damage thresholds recorded for PVD coatings at the Lawrence Livermore National Laboratory damage facility. The HR was a multilayer of ZnS and AF2400. The bandwidth was 550 nm, centered at 1064 nm. Single layers of Teflon AF2400 deposited by PVD were characterized optically. The refractive index could be intentionally reduced below the bulk value by varying either deposition rate or substrate temperature. Scanning electron microscopy and nuclear magnetic resonance observations indicated that morphological changes caused the variations in the refractive index rather than compositional changes.

Paper Details

Date Published: 4 November 1994
PDF: 9 pages
Proc. SPIE 2253, Optical Interference Coatings, (4 November 1994); doi: 10.1117/12.192127
Show Author Affiliations
Robert Chow, Lawrence Livermore National Lab. (United States)
Gary E. Loomis, Lawrence Livermore National Lab. (United States)
Maura K. Spragge, Lawrence Livermore National Lab. (United States)
Edward F. Lindsey, Lawrence Livermore National Lab. (United States)
Frank Rainer, Lawrence Livermore National Lab. (United States)
Richard L. Ward, Lawrence Livermore National Lab. (United States)
Mark R. Kozlowski, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 2253:
Optical Interference Coatings
Florin Abeles, Editor(s)

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