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Sapphire (Al2O3) Components

Sapphire (Al2O3) Components

It is transparent from 150 nm up to 6 mm in the middle infrared. Sapphire exhibits anisotropy in many optical and physical properties.

from 28 $
delivery Estimated delivery time: 4 - 5 days
Products
Specifications
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Description
Sapphire (Al2O3) Windows
Code Diameter Thickness Price Delivery Add to cart
550-7120 ø 12.7 mm 0.5 mm 29 $ 4 - 5 days
550-7121 ø 12.7 mm 1 mm 28 $ 4 - 5 days
550-7122 ø 12.7 mm 2 mm 28 $ 4 - 5 days
550-7123 ø 12.7 mm 3 mm 28 $ 4 - 5 days
550-7124 ø 12.7 mm 4 mm 30 $ 4 - 5 days
550-7126 ø 12.7 mm 6 mm 33 $ 4 - 5 days
550-7200 ø 20.0 mm 0.5 mm 39 $ 4 - 5 days
550-7201 ø 20.0 mm 1 mm 39 $ 4 - 5 days
550-7202 ø 20.0 mm 2 mm 39 $ 4 - 5 days
550-7250 ø 25.4 mm 0.5 mm 50 $ 4 - 5 days
550-7251 ø 25.4 mm 1 mm 50 $ 4 - 5 days
550-7252 ø 25.4 mm 2 mm 50 $ 4 - 5 days
550-7253 ø 25.4 mm 3 mm 50 $ 4 - 5 days
550-7254 ø 25.4 mm 4 mm 50 $ 4 - 5 days
550-7255 ø 25.4 mm 5 mm 55 $ 4 - 5 days
550-7382 ø 38.1 mm 2 mm 120 $ 4 - 5 days
550-7502 ø 50.0 mm 2 mm 173 $ 4 - 5 days
550-7503 ø 50.0 mm 3 mm 182 $ 4 - 5 days

 

Physical Properties

Crystal type

Hexagonal

Density, g/cm3

3.98

Melting point, °C

2040

Refractive index @ 0.3 µm

n = 1.814

Refractive index @ 5 µm

n = 1.623

Transmission band [µm]

0.15-6

 

Specifications

Material Al2O3
Surface quality 60-40 scratch & dig (MIL-PRF-13830B)
Clear aperture 80% of diameter
Diameter tolerance +0.0-0.13 mm
Thickness tolerance ±0.2 mm
Parallelism 3 arcmin
Flatness 1λ per inch  @ 633 nm
Orientation C-cut
EKSMA Optics Sapphire (Al2O3) Optical Components
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  • The hardest of the oxide crystals
  • Excellent transparency and thermal properties
  • Chemically inert and insoluble
  • Can be safely made much thinner than windows from glass or other crystals

Single crystal sapphire combines excellent optical, physical and chemical properties. Chemically inert and almost insoluble, sapphire in many ways is superior material for windows. It is transparent from 150 nm up to 6 mm in the middle infrared. Sapphire exhibits anisotropy in many optical and physical properties. Difference in index of refraction in orthogonal directions is 0.008.