Chrome-Doped Zinc Selenide Crystal Supplier | Stanford Advanced Materials

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

Catalog No.

CY2252

Crystal Structure

Cubic

Clear Aperture

>90%

Chamfer

<0.5×45°

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>