Sapphire Optical Crystals

Product Details


Description:

Sapphire crystal is an excellent multifunctional material widely used in industry, national defense, and aerospace. It has high-temperature resistance up to 2000 ,good thermal conductivity, high hardness (Morse 9th) and good chemical stability. Usually, this material is used for high-temperature resistant infrared window, solid laser, precision wear-resisting bearings. It is also widely applied in crystal substrate, especially for blue, purple, white light-emitting diodes (LED) and blue light laser (LD). As the hardest material among all oxide crystals, Sapphire has a combination of good optical and physical properties, which even maintains at high temperature, making it the best choice for a variety of demanding applications. 

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Features  

◆ Extreme surface hardness

◆ High-temperature resistance

◆ Good thermal properties

◆ Excellent electric and dielectric properties and chemical resistance

◆ Transmitting wavelength ranging from UV to Mid-Infrared

Applications

◆  Thin and high-strength window

◆  Optical substrates and window

◆  Transparent electronic substrate

◆  High-temperature and pressure window

◆  Right angle prism


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Transmittance of Sapphire crystal 

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Polishing specifications

Surface flatness

<λ/8 @632nm

Clear Aperture

>90%

Orientation Tolerence

<0.5°

Thickness/Aperture Tolerance

±0.1 mm

Parallel

10〞

Perpendicular

Surface quality

10/5 (Scratch/Dig)

Chamfer

<0.2×45°

Wavefront distorsion

<λ/8@632 nm

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Physical and chemical properties

Property

Value

Chemical composition

Lu3Al5O12

Melting (℃)

2020℃

Symmetry

Cubic

Structure

Ia3d

Cell parameters (Å)

11.914

Hardness

8.5

Density (g/cm3)

6.73

Thermal conductivity (W/(℃.cm))

0.08 @ 25℃

expanding coefficient (10-6/℃)

8.8

Refractive index (λ=550nm)

1.84

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Scintillation properties

Emission peak (nm)

510

Light yield (Photons/Mev)

15000

Relative light output (%NaI:Tl)

20

Decay time (ns)

80

Radiation length for 511 keV (cm)

1.3

Energy resolution

<8%

Zeff

63

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Standard product

  Length (mm)

  Diameter (mm)

          Light yield (photons/Mev)

up to 150mm

up to 80mm

15000



With Optical Crystals for sale, it is one of the leading manufacturers and supplies of good sapphire optical crystals, welcome to buy and wholesale products at good price from our factory.

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