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
Get a Quote
