Znse imported material diameter 20 mm focalize distance 63 5 mm thickness 2 mm CO2 laser focalize len in Lenses from Tools

Znse imported material diameter 20 mm focalize distance 63 5 mm thickness 2 mm CO2 laser focalize len in Lenses from Tools
Znse imported material diameter 20 mm focalize distance 63 5 mm thickness 2 mm CO2 laser focalize len in Lenses from Tools
Znse imported material diameter 20 mm focalize distance 63 5 mm thickness 2 mm CO2 laser focalize len in Lenses from Tools
Znse imported material diameter 20 mm focalize distance 63 5 mm thickness 2 mm CO2 laser focalize len in Lenses from Tools
Znse imported material diameter 20 mm focalize distance 63 5 mm thickness 2 mm CO2 laser focalize len in Lenses from Tools
Znse imported material diameter 20 mm focalize distance 63 5 mm thickness 2 mm CO2 laser focalize len in Lenses from Tools

Product Specification

Model Number: ZnSe-20-63-I

Brand Name: Svit SensoPlan by Trumsense

Material: Znse

Structure: one side concave, one side convex

Usage: Focus len

Shape: concave-convex

Focal Length: 63.5 mm

Description:

 

Znse Materail Focus Len Diamater 20 mm, Thickness 2 mm

Focus Distance 63.5 mm

 

ZnSe can be made in both hexagonal (wurtzite) and cubic (zincblende) crystal structure.
 
It is a wide-bandgap semiconductor of the II-VI semiconductor group (since zinc and selenium belong to the 12th and 16th groups of the periodic table, respectively). The material can be doped n-type doping with, for instance, halogen elements. P-type doping is more difficult, but can be achieved by introducing gallium.
 
ZnSe is used to form II-VI light-emitting diodes and diode lasers. It emits blue light.
ZnSe doped with chromium (ZnSe:Cr) has been used as an infrared laser gain medium emitting at about 2.4 µm.
 
It is used as an infrared optical material with a remarkably wide transmission wavelength range (0.45 µm to 21.5 µm). The refractive index is about 2.67 at 550 nm (green), and about 2.40 at 10.6 µm (LWIR). Similar to zinc sulfide, ZnSe is produced as microcrystalline sheets by synthesis from hydrogen selenide gas and zinc vapour. When free of absorption and inclusions it is ideally suited for CO2 laser optics at 10.6 µm wavelength. It is thus a very important IR material. In daily life, it can be found as the entrance optic in the new range of "in-ear" clinical thermometers, seen as a small yellow window. Zinc selenide can slowly react with atmospheric moisture if poorly polished, but this is not generally a serious problem. Except where optics are used in spectroscopy or at the Brewster angle, antireflection or beamsplitting optical coatings are generally employed.
 
ZnSe activated with tellurium (ZnSe(Te)) is a scintillator with emission peak at 640 nm, suitable for matching with photodiodes. It is used in x-ray and gamma ray detectors. ZnSe scintillators are significantly different from the ZnS ones.
 
ZnSe is insoluble in water, but reacts with acids to form toxic hydrogen selenide gas.
It can be deposited as a thin film by chemical vapour deposition techniques including MOVPE and vacuum evaporation.
 
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1>Diamater: 20 mm

2>Thickness: 2 mm

3>Materail: Znse

4>Focus Distance: 63.5 mm

 

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Remarks: we has large stock for this Znse focus lens, and if you are the distributor with large quantity, please contact our online sales to talk for a bottom price, when you order reach 50 pieces at the first time.

Thank you~ Enjoy the laser work~

 

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Download book PDF

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Apr 10, 1997 ... All rights are reserved, whether the whole or part of the material is ...... and the percentage of imported fuels will reach almost 70% by 2010 [5]. ..... high- efficiency thin-film GaAs-based solar celIs can be fabricated on low-cost ...... thick film of nanocrystalline Ti02 particles (10-30 nm in diameter), prefer-.
https://link.springer.com/content/pdf/10.1007%252F978-3-662-10549-8.pdf

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May 13, 2011 ... spectra of samples mounted on Zinc Selenide (ZnSe) Windows. ... wiched between two pieces of IR-transparent material. ... 13 mm diameter ...... Dataset was imported in SAS and then the principle components (PCs) were ...
http://citeseerx.ist.psu.edu/viewdoc/download%3Fdoi%3D10.1.1.425.6375%26rep%3Drep1%26type%3Dpdf

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