IR Windows Silicon Windows
Silicon (Si) is grown by Czochralski pulling techniques (CZ) and contains some oxygen that causes an absorption band at 9 microns. To avoid this, material can be prepared by a Float-Zone (FZ) process. Optical silicon is generally lightly doped (5 to 40 ohm cm) for best transmission above 10 microns, and doping is usually boron (P-type) and phosphorus (N-type). After doping silicon has a further pass band: 30 to 100 microns which is effective only in very high resistivity uncompensated material.
CZ Silicon is commonly used as substrate material for infrared reflectors and windows in the 1.5-8 micron region. The strong absorption band at 9 microns makes it unsuitable for CO2 laser transmission applications, but it is frequently used for laser mirrors because of its high thermal conductivity and low density.
Application as Silicon window, Silicon lens in the 1.5-7um region; Silicon Mirror for CO2 laser and spectrometer applications.
Silicon(SI) Windows SPECIFICATION:
| Material: | Silicon(Si) |
| Dimension Tolerance: | +0.0, -0.1mm |
| Thickness Tolerance: | ± 0.1mm |
| Surface quality: | 60/40 |
| Clear Aperture: | >85% |
| Flatness: | λper 25mm |
| Parallelism: | 3' |
| Bevel: | <0.25mm X 45° |
| Coating: | AR Coated or HR Coated |
AR coated Colour glass window
AR Coated Sapphire Windows
AR Coated BK7 Windows
UV Fused Silica High-Precision window
IR Windows Calcium Fluoride CaF2 Windows
Calcium Fluoride windows and lenses for UV and IR spectrum. Custom made CaF2 windows, CaF2 lenses and wedges according to customer's specifications. CaF2 windows up to 220mm diameter; CaF2 wedges, prisms and CaF2 mirrors; Excimer CaF2 optics, Raman grade CaF2 optics and etc.
Magnesium Fluoride (MgF2) Windows
Magnesium Fluoride Windows applicable for wide range spectrum, transmits well into the VUV region at the hydrogen Lyman-alpha line and beyond and it is particularly useful for Excimer laser application.It is resistant to mechanical and thermal shock, to radiation, and is chemically stable.
IR Windows Germanium Windows
IR Windows Zinc Selenide(ZnSe) Windows
M12· Low Distortion Lens UN-UW027028C-16MP
M12· Low Distortion Lens UN-UW057016C-8MP
High Power Laser Line Windows
1、What are laser windows?
Laser Protect Windows(Laser protective glass, protective filters or welding protective windows) are used to save for the high cost of laser optics.
2、What are laser windows used for?
These windows are normally used in applications like laser cutting, laser welding machine, they are used for avoiding the high-precision laser optics damage by material splashes.
3、The key features of UNI Optics' Laser Windows
High Transmission
High Damage Threshold
Low Scatter
Low Absorption
Excellent Film Density
Excellent Environmental Stability
Typical Specifications:
Dimension: 4mm-80mm, round or square
Material: BK7, Fused Silica, ZnSe...etc
Surface quality: 10/5
Surface flatness: Lambda/10@632.8nm
Parallelism: 30’’
Roughness: 3A
M12· Fisheye Lens UN-UW001212C-16MP
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Tel : +86-591-86395085
Email : sales@uni-optics.com
