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ZnSe Window

Longsee 2022-11-10 0

400x280_crop

Machinable shapeCircle, rectangle, polygon and other shapes
Size rangeDiameter (maximum diagonal):Φ8-Φ300mm
Thickness:0.05-50mm
Fineness10-5 20-10 40-20
Surface roughness<5nm
Parallelism<20″
CoatingCustomized according to customer requirements
Density( g/cm3)5.27
Melting point(℃)1525
Resistivity Ω.CM~10^12
Purity(%)99.9996

Physical Properties

Coefficient of thermal expansion(1/℃)7.1*10^-6@273K
7.8*10^-6@373K
8.3*10^-8@473K
Thermal conductivity(J/k.m.s)18.0@298K
Heat capacity(J/g.k)0.339@298K
KnoopHardness(kg/mm2)110
Bending strength(MPa)55
Young modulus(GPa)67.2
Poisson ratio0.28

Optical Properties

Through wavelength range500nm-22000nm
Refractive index inhomogeneity(ΔN/N)<3*10^-6@632.8nm
Absorption coefficient(1/cm)5.0*10^-3@1300nm
7.0*10^-4@2700nm
4.0*10^-4@3800nm
4.0*10^-4@5250nm
5.0*10^-4@10600nm
Thermal conductivity(J/k.m.s)1.07*10^-4@632.8nm
Heat capacity(J/g.k)7.0*10^-5@1150nm
KnoopHardness(kg/mm2)6.2*10^-5@3390nm
Bending strengt(MPa)6.1*10^-5@106000nm

0

Zinc selenide window slice

wavelength(nm) Refractive index(n) Refractive index(n) wavelength(nm)
6202.5994106002.4028
10002.4892130002.3850
38002.4339146002.3705
50002.4295166002.3487
70002.4218178002.3333
90002.4122182002.3278

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