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Laser Windows |
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Laser windows are precision
plano parallel polished surfaces. Polishingthe surfaces
to high  precision
finish with very find abrasives to minimise any surface
microfracture. Polishing the surfaces very slowly for
greater periodsof time than standard optical polishing.
This is essential for laser substrates fabrication to
achieve high flatness, parallelism and surface finish. |
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Laser Windows Specification
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Laser Window Coatings
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| · Parallelism: <2 arc min |
· Single & Multilayer AR Coatings
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| · Surface Quality: to 10/5 |
· High Reflection Laser mirror >99%
R |
| · Flatness: to Lambda 10 |
· Protected aluminum >85% R |
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· Protected/enhanced silver>97% R
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Laser Window Materials
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| Materials
for laser windows generally include Fused Silica,
borosilicate and BK7 optical glass. A Fused Silica
grade for higher specification for excimer lasers
developed for maximum transmission and prolonged
life. |
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