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Home / Crystal / Windows / Magnesium Fluoride (MgF2) Windows

Magnesium Fluoride (MgF2) Windows

IdealPhotonics Magnesium Fluoride (MgF2) Windows offer excellent broadband transmission from the deep-UV to the mid-infrared. DUV transmission makes them ideal for use at the Hydrogen Lyman-alpha line and for UV radiation sources and receivers, as well as excimer laser applications. MgF2 is a rugged material resistant to chemical etching, laser damage, and mechanical and thermal shock. It has a Knoop Hardness of 415 and index of refraction of 1.38 .

 Name Price Operation
Magnesium Fluoride (MgF2) Windows $95.00
Features

● Excellent Transmission from 120nm to 7μm

● Rugged and Durable

● Resistant to Chemical Etching

● Customized by drawings(Wedged, Drilled, Rectangled, etc.)

● BBAR Coatings/ Cold Processing Avialable

Physical/Optical Characteristics

Crystal type

tetragonal

Density , g/cm3

3.177

Melting point, °C

1255

Refractive index @ 1.0 µm

no = 1.3796, ne =   1.3852

Transmission band, µm

0.11÷7.5

Lattice constant, Å

a = 4.60, c = 3.06


Specifications

Material

MgF2

Surface quality

40-20 scratch & dig   (MIL-PRF-13830B)

Clear aperture

90% of diameter

Diameter tolerance

+0.0 -0.1 mm

Thickness tolerance

±0.2 mm

Parallelism

<3 arcmin

Flatness

λ/4 @ 633  nm

Spectral range

UV, IR


Example

caf1.jpg

Application

Due to its superior optical quality and excellent transmittance in UV, VIS and IR spectral ranges, Hellma Materials CaF2 can be used in versatile applications:

● IR optics

● Optics for astronomical instrumentation

● Space-based optics

● Microscope optics

● Spectroscopy optics

● UV optics

● Laser windows

● Excimer laser optics

● Microlithography optics

Ordering Info

Part No.

Diameter   (mm)

Thickness   (mm)

IP-12X2

12.7

2.0

IP-13.5X1

13.5

1.0

IP-25X4

25.4

4.0

IP-28X5

38.1

5.0

IP-50X3

50.8

3.0

IP-50X5

50.8

5.0

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