what are you looking for?
MgF2 or Magnesium Fluoride is positive uni-axial crystal with a very high optical transmittance from the vacuum UV to IR. It is regularly used for optical elements where extreme ruggedness and durability is required. It also has a large resistance to mechanical and thermal shock, to optical radiation, and is chemically stable, making it a very useful materials for UV and IR optics.
Product Origin:
ChinaShipping Port:
Fuzhou, ChinaLead Time:
3-4weeks
Descriptions:
MgF2 or Magnesium Fluoride is positive uni-axial crystal with a very high optical transmittance from the vacuum UV to IR. It is regularly used for optical elements where extreme ruggedness and durability is required.
Main application:
1) VUV , UV ,IR optical systems
2) UV photomultiplier tubes
3) Excimer lasers
4) Optical fiber communications industry
Advantages:
1) High optical transmittance from the vacuum ultraviolet to the infrared spectrum region(0.12～8.5μm).
2) Resistance to mechanical , thermal shock and radiation
3) Chemically stable
4) A positive birefringent crystal
5) Used for Optical prisms, lenses, wedges, windows, other optical components etc
Basic properties of MgF2 crystal:
|
Chemical Formula |
MgF2 |
|
Density |
3.18 g/cm3 |
|
Melting Point |
1255℃ |
|
Boiling Point |
2239℃ |
|
Molar Mass |
62.32 |
|
Thermal Conductivity |
3.15W/m K |
|
Specific Heat |
920 J/(kg K) |
|
Thermal Expansion Coefficient |
⊥C 9×10–6∥C 14 ×10–6 / K |
|
Knoop Hardness |
415,576 kg/mm2 |
|
Mohs Hardness |
5--6 |
|
Young's Modulus |
138.5 GPa |
|
Shear Modulus |
54.66 GPa |
|
Bulk Modulus |
101.32 GPa |
|
Rupture Modulus |
49.6 MPa |
|
Elastic Coefficient |
C11=140 C12=89 C44=57 C13=63 C66=96 |
|
Dielectric Constant |
105 ~107 Hz 5.45 |
|
Solubility in Water |
0.0076 g / 100 g, 18℃ |
|
Lattice Parameter |
a=4.64 Å, c=3.06 Å |
|
Crystal Type |
Tetragonal, P42/mnm |
|
Cleavage Planes |
(100), (110) |
|
Absorption Coefficient |
0.07 at 0.2µm,0.02 at 5.0µm |
|
Poisson's Ratio |
0.276 |
|
Transmission Range |
0.11 - 8.5 |
|
Vapor Pressure |
1 Pa(at 1150℃), 10 Pa(at 1300℃) |
|
Applications |
IR, UV , DUV and VUV |
|
Fluorescence |
Weak yellow upon excitation at 590 nm |
HGO offers MgF2 specifications:
|
Orientation: |
a-cut or <100> ;C-cut or<001>; random (-RM) or as specified |
|
Wavefront Distortion: |
λ/6 per inch @ 632.8 nm |
|
Dimension Tolerances： |
rods with diameter: +0.0/-0.05 mm , Length: ±0.1 mm |
|
Surface Quality: |
20/10 Scratch/Dig MIL-O-1380A |
|
Parallelism: |
< 20″ |
|
Perpendicularity: |
< 10′ |
|
Clear Aperture: |
> 85% |
|
Surface Flatness: |
< λ/6 @ 632.8 nm |
|
Chamfer: |
< 0.25 mm @ 45deg. |
|
Size |
Upon customer request |
|
Coating |
Uncoated or upon customer’s request |
|
Quality Warranty Period |
One year under proper use |
Why Choose HGO ?
HG OPTRONICS.,INC. has the ability to supply high quality MgF2 Magnesium Fluoride Crystal in mass production quantity. Material from HGO features with high transmittance in VUV(>70%) and UV wavelength ranges. Standard size for VUV windows are Dia.8 and Dia.6 with 1mm thickness.
HGO offer both a-cut (or [100] cut) MgF2 windows for the maximum birefringence and c-cut (or cut along the optical axis) with the minimum birefringence. Random-cut (cut along a random axis) MgF2 windows are also available. The thickness can be made as thin as 0.1mm. In addition, we can also produce other types of window crystals like YAG crystals, BaF2,LiF Crystals, etc.
HGO has a mass-production line for MgF2 crystals and have wide experiences and strong ability to supply such crystals with large quantity and in very short delivery time.
Leave A Message
CaF2 or Calcium Fluoride is a cubic crystal with an excellent transmission from 130 nm to 10 μm and has widespread applications as transparent windows in the ultraviolet and infrared spectra.
Read More
HGO grows LiF crystals in house using Czochralski technology. LiF crystal or lithium fluoride crystal is an optical material with outstanding transmittance in VUV region. It is also used for windows, prisms, and lenses in the visible and infrared in 0.104µm-7µm. LiF single crystal is sensitive to thermal shock and would be attacked by atmospheric moisture at 400°C. When working at a high temperature of 600°C, the LiF crystal softens and is slightly plastic, so it can be bent into radius plates. In addition irradiation produces color centers. Hence, users should take measures to protect LiF crystals from moisture and high energy radiation damages. What is more LiF can be cleaved along (100) plane and less commonly (110) plane. The optical characteristics are good and yet the structure is not perfect and cleavage is difficult.
Read More
Pure YAG Yttrium Aluminum Garnet is a new substrate and window material that can be used for both UV and IR optics. It is particularly useful for high-temperature and high-energy applications. The mechanical and chemical stability of YAG is comparable to sapphire crystal, but YAG is unique with no birefringence which is extremely important for some optical applications.
Read More
HGO grows Ho:YLF laser crystals using Czochralski technology. Ho:YLF is a very attractive laser material, because the lifetime of the upper laser level is much longer ( ~ 14 ms) than in Ho:YAG and the emission cross sections are higher. Additionally the thermal lens in Ho:YLF is much weaker, which helps to generate diffraction limited beams even under intense end-pumping. The primary advantage of directly pumping the Ho 5I7 is that it does not have to depend on energy transfer, which lends itself to various radiative and non-radiative losses. Up-conversion losses that have deleterious effect in high-energy Q-switched lasers are eliminated.
Read More
In optics, a prism is a transparent optical element with flat, polished surfaces that refract light. At least two of the flat surfaces must have an angle between them. The exact angles between the surfaces depend on the application. The traditional geometrical shape is that of a triangular prism with a triangular base and rectangular sides, and in colloquial use "prism" usually refers to this type. Some types of optical prism are not in fact in the shape of geometric prisms. Prisms can be made from any material that is transparent to the wavelengths for which they are designed.
Read More
HGO grows Nd:YLF laser crystals using Czochralski technology. Nd3+:YLF crystal is characterized by its long lifetime of 4F3/2 neodymium energy level. Compared to Nd:YAG, the lower thermal conductivity and a weak negative dn/dT lead to lower thermal distortions and allow to achieve a better output beam quality. Another distinctive feature is the high UV transparency, which is favorable for pumping with xenon flash lamps.
Read More
Er: YAG (Erbium-doped Yttrium Aluminum Garnet) is a solid-state crystal widely used as a laser medium in various medical and dental applications. It is made by doping erbium ions into yttrium aluminum garnet (YAG) crystals and can emit laser light with a wavelength of approximately 2.94 micrometers in the infrared spectrum.
Read More
Potassium Titanyl Phosphate (KTiOPO4 or KTP) is widely used in both commercial and military lasers including laboratory and medical systems, range-finders, lidar, optical communication and industrial systems.
Read More
IPv6 network supported
