CY2252 Chrome-Doped Zinc Selenide Crystal (Cr:ZnSe)

Catalog No. CY2252
Crystal Structure Cubic
Clear Aperture >90%
Chamfer <0.5×45°

At SAM, we specialize in the growth and fabrication of high-temperature single-crystal and doped laser materials. Serving medical and scientific industrials for over 20 years, SAM provides high precision fabrication laser crystal products.

Related Products: Titanium-doped Sapphire Crystal (Ti:Sapphire), Ho:Cr:Tm:YAG, Neodimium-doped Yttrium Aluminum Garnet (Nd:YAG).

Description of Chrome-Doped Zinc Selenide Crystal 

Cr: ZnSe laser crystal has the advantages of normally no excited state absorption and upper-level conversion, an extremely broad absorption band and large emission cross-section, superb fluorescence quantum efficiency at room temperature and extra broad emission width as well as good chemical and mechanical properties, which make it become an excellent source of the efficient and powerful tunable mid-infrared laser. Because the mid-infrared wavelength band is the window of the atmosphere, the Cr: ZnSe laser crystal has important application prospects in the field of photo-communication, pollution gas detection, industrial combustion product test, and so on.

 

Specifications of Chrome-Doped Zinc Selenide Crystal 

Material specifications

Crystal structure

Cubic

Poisson ration

0.28

Thickness./ diameter tolerance

±0.05mm

Orientation tolerance

<0.5°

Surface flatness

<λ/8@632nm

Wavefront distortion

<λ/4@632nm

Surface quality

10-5(MIL-O-13830A)

Parallel

30"

Perpendicular

15'

Clear aperture

>90%

Chamfer

<0.5×45°

Melting point

1520 °C

Optical and spectral properties

Thermal Expansion Coeff. @20°C

1.5×10-6/°C

Thermal Conductivity Coeff. @20°C

14 W/m/°K

 Specific Heat

0.79 J/g K

Density

5.27 g/cm³

Durability Knoop Hardness

112 kgf/mm²

Mohs Hardness

8.5

Young‘s Modulus

67 GPa

Modulus of Rupture

55 MPa

Orientation

<111>or <100>


 

Applications of Chrome-Doped Zinc Selenide Crystal 

- Surgery
- Remote sensing
- Dentistry
- Free space communications
- Military applications

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