Zinc Selenide Windows （rectangular）

zinc selenide rectangular windows are a common optical element, with a rectangular shape, used to separate the inside and outside of the optical system and protect the internal components. It has the characteristics of high transparency, high anti reflection, and high thermal stability. It has high transmittance in both visible and infrared bands, as well as low reflectivity and low absorption. Used in equipment such as LiDAR, optical sensors, and spectrometers as a transmission or reflection device for the optical path. Zinc selenide rectangular window panels come in various sizes and specifications to meet different application requirements. Micron optics can provide different types of window sheets such as circular, rectangular, wedge-shaped, perforated, and stepped sheets.

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The product undergoes multiple inspections before being stored, and the quality is guaranteed. Please use it with confidence.

Spot products, shipped within 48 hours. For non stock or customized products, please consult.

International order logistics include DHL, FedEx, TNT, and EMS

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Optical products are special items and cannot be returned or exchanged unless there is a quality issue with the product itself

If you need customization or bulk production, please contact us online and we will offer you a discounted price.

	Length(mm)	Width(mm)	ThK(mm)	Surface Quality	Surface Accuracy	Clear Aperture	Parallelism	Bevel(mm)
	Screen Reset 15	Screen Reset 15	Screen Reset 5	Screen Reset 60-40	Screen Reset 3(1)	Screen Reset >90%	Screen Reset 3′	Screen Reset 0.35
More+ Less	15	15	5	60-40	3(1)	>90%	3′	0.35
Sizes 15mm15mm5mm，Zinc Selenide Rectangular Windows Number：PZE02C001 Length(mm)：15 Width(mm)：15 ThK(mm)：5 Surface Quality：60-40 Surface Accuracy：3(1) Clear Aperture：>90% Parallelism：3′ Length Tolerance(mm)：+0.0/-0.1 Width Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Zinc Selenide（ZnSe） Transmission Range：0.5-15μm Bevel(mm)：0.35 Coating：Uncoated 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@298k0.339@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