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Fused Silica Optics Co.,LTD
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Optical Grade Zinc Selenide(ZnSe) AR Coated Windows for Ftir

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Optical Grade Zinc Selenide(ZnSe) AR Coated Windows for Ftir

Brand Name : FSO

Model Number : FSOOZnS-1

Certification : ROHS/SGS

Place of Origin : China

MOQ : 1 pcs

Price : Negotiation

Payment Terms : T/T

Supply Ability : 10000pcs/month

Delivery Time : As customer's requirement

Packaging Details : Standard

Material : Zinc Sulfide or optical crystal

Size : 1.5-300mm

Surface quality : 60/40 or better

Dimention Tolerance : 0.0/-0.1mm

Diameter : 1.5-300mm

Bevel : 0.1-0.3mm X45 Degree

Clear Aperture : >90%

Coating : AR

Flatness : 1/2 1/4 Lambda

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Optical Grade Zinc Selenide(ZnSe) AR Coated Windows for Ftir

Chemically vapor-deposited Zinc Selenide (CVD ZnSe) is a preferred material for optical components in high power CO2 lasers due to its low absorption at 10.6μm. Also, for its excellent optical performance, CVD ZnSe is widely used as mirror, lenses and prisms in high resolution FLIR systems.

CVD ZnSe shows theoretical transmission across 0.5~18μm waveband and has very low absorption at 10.6μm with the bulk absorption coefficient less than 5×10-4cm-1. Fine controlled grain size makes Fused Silica Optics's CVD ZnSe stable to thermal shock and hostile environment.

Blanks, windows, lenses and prisms can be made according to your specifications, with the size up to 250×200×12mm.

Specifications:

Materials ZnS( Zinc Sulfide)
Shapes Circular: windows, spherical lenses,Rectangular: windows, Special: domes, prisms
Maximum Dimension Circular: 250×12mm Rectangular: 250×200×12mm Dome:300mm
Tolerance Diameter: +/- 0.05mm
Length & Width: +/-0.05mm
Thickness: +/- 0.05mm
Caliber:+/- 0.05mm
Surface Quality Plano blanks: as cut
Polished windows/domes: to customer
Clear Aperture >90%
Surface Flatness 1/2 lambda, 1/4lambda or better
Parallelism ‘+/-3' , +/-30'' or better
Bevel <0.2mm±45°
Coating Uncoated, AR, BBAR, Reflective

Symbol ZnS
Crystal Structure Cubic
Melting Point (℃) 1830
Density (g/cm3) 4.09
Purity > 99.9995%
Band Gap 3.66eV(@300K)

FLIR Grade Water-clear Grade
Wavelength(μm) n Wavelength(μm) n
0.5 2.419 0.5086 2.41279
0.7 2.332 0.7065 2.33073
1 2.292 1.014 2.29165
3 2.257 3 2.25772
5 2.246 5 2.24661
7 2.232 8 2.22334
8.2 2.221 10 2.20084
10.2 2.198 11.25 2.18317
11 2.186
Bulk Absorption Coefficient (@10.6μm, cm-1) ≤ 0.2 ≤ 0.2
Index of Refraction Homogeneity (@0.6328μm) < 5×10-5 < 5×10-5
Thermo-optic Coefficient (dn/dt) 6.4×10-5(@0.63μm) 5.4×10-5(@0.63μm)
4.2×10-5(@1.15μm) 5.0×10-5(@1.15μm)
4.6×10-5(@3.39μm) 4.6×10-5(@3.39μm)
6.6×10-5(@10.6μm) 4.6×10-5(@10.6μm)

Optical Grade Zinc Selenide(ZnSe) AR Coated Windows for Ftir

FLIR Grade Water-clear Grade
Thermal Expansion Coefficient (10-6, ℃-1) 7.85 7.85
Modulus of Rupture (Mpa) 103.4(@room temperature) 68(@room temperature)
160(@660℃) 160(@600℃)
Thermal Conductivity (@300K,Wcm-1.K-1) 0.19 0.272
Heat Capacity(Cal/g.K) 0.112 0.124
Youngs Modulus (Gpa) 74.5 74.5
Poisson's Ratio 0.29 0.28
Hardness(knoop)(kg/mm2) 200-230 160


Wholesale Optical Grade Zinc Selenide(ZnSe) AR Coated Windows for Ftir from china suppliers

Optical Grade Zinc Selenide(ZnSe) AR Coated Windows for Ftir Images

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