CVD IR Zinc Selenide

CVD infrared grade zinc selenide has the characteristics of high purity, strong environmental adaptability, and easy processing, and has excellent optical properties in the infrared band. CVD infrared grade zinc selenide also has low optical transmission loss and good transparency, especially in the infrared band. This makes it the preferred material for high-power CO2 laser optical components. In addition, due to its high resistance to thermal shock, it is also one of the best optical materials in high-power CO2 laser systems. Applied in high-power CO2 laser systems, infrared thermal imaging equipment, medicine and industry, astronomy and infrared night vision, and other fields.

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	Dia(mm)	ThK(mm)	Growth Mode	Orientation	Shape
	Screen Reset 3-300	Screen Reset 0.5-60	Screen Reset CVD	Screen Reset None	Screen Reset Customizable
More+ Less	3-300	0.5-60	CVD	None	Customizable
CVD Infrared Grade Zinc Selenide，3-300mm Number：ZnSeB001 Dia(mm)：3-300 ThK(mm)：0.5-60 Growth Mode：CVD Orientation：None Shape：Customizable Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Material：Zinc Selenide（ZnSe） Transmission Range：0.5-22μm Density(g/cm³)：5.27 REACH：Compliant ROHS：Compliant

Material Data
Physical Properties
Crystal Structure	Cubic
Density [g/cm3]	5.27
Resistivity [Ω.cm]	～1012
Melting Point [℃]	1525
Chemical Purity [%]	99.9996
Thermal Expansion [1/K]	7.110-6@273k 7.810-6@373k 8.3*10-8@473k
Thermal Conductivity [J/k.m.s]	18.0@298k
Specific Heat Capacity [J/g.K]	0.339@298k
Knoop Hardness [kg/mm2]	110
Bending Strength [Mpa]	55
Young's Modulus [GPa]	67.2
Poisson's Coefficient	0.28
Optical Properties
Transmission Range	0.5-22μm
Refractive index inhomogeneity [△n/n]	<3*10-6@632.8μm
Absorption coefficient [1/cm]	5.010-3@1300nm 7.010-4@2700nm 4.010-4@3800nm 4.010-4@5250nm 5.0*10-4@10600nm
Thermal light coefficient [1/k,298-358k]	1.0710-4@632.80nm 7.010-5@1150nm 6.210-5@3390nm 6.110-5@10600μm

Wavelength(nm)	Refractive Index(n)	Wavelength(nm)	Refractive Index(n)
620	2.5994	10600	2.4028
1000	2.4892	13000	2.385
3800	2.4339	14600	2.3705
5000	2.4295	16600	2.3487
7000	2.4218	17800	2.3333
9000	2.4122	18200	2.3278