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Single crystal sapphire windows are ideal for demanding applications (
such as laser system because of their extreme
surface hardness, high thermal conductivity,
high dielectric constant and resistance to
common chemical acids and alkalis. Sapphire is
the second hardest crystal next to diamonds and,
because of their structural strength, sapphire
windows can be made much thinner than other
common dielectric windows with improved
transmittance.
- Material: optical sapphire (Al2O3)
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- Surface Accuracy: 2λ
per 25.4mm at 632.8nm over 90% aperture
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- Parallelism: < 3.5 arc min.
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