MgF2 Substrate

Magnesium fluoride crystal (MgF2) belongs to the tetragonal crystal system, the melting point is 1255℃, the hardness is high, the mechanical properties are good, the chemical properties are stable, and it is not easy to deliquesce and corrode. The main feature of the optical performance is that it has high transmission in the vacuum ultraviolet band. It is widely used in optical fiber communication, military industry and various optical components.

OST Photonics offers high quality MgF2 substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.

Request For Quotations

Features

    • High transmission in the vacuum ultraviolet band

    • Stable chemical properties

    • Good mechanical properties

    • High Hardness

Applications

    • Optical fiber communication

    • Military industry

    • Optical components

Processing Capability

    • Orientation: <001>,<100>,<110>,<210>,<111>, etc.

    • Dimension: 1”, 2”, 15x15mm, 20x15mm, 20x20mm, 10x10mm, 5x5mm, etc.

    • Thickness: 0.33mm, 0.43mm, 0.5mm, 1.0mm, etc.

    • Available items: wafers, substrates, windows, prisms, blanks and customized optics

Specification and properties of MgF2 Substrates

Crystal Structure

Tetragonal

Lattice Constant

a=4.62 Å, c=3.06 Å,

Melting Point

1255 ℃

Growth Method

Bridgeman

Density

3.18 g/cm3

Hardness

4 Mohs

Thermal Expansion Coefficient (/℃)

13.7×10^-6 (∥c), 8.9×10^-6 (⊥c)

Thermal Conductivity

0.3 W/mK@300K

Refractive Index

no=1.37608 ne=1.38771 (0.7μm)

Transmission Wavelength

0.2-6.00 μm

Temperature Coefficient

[email protected]

Transmittance

> 90% @0.2-6.00 μm

Orientation

<001>,<100>,<110>,<210>,<111>, etc.

Orientation Tolerance

±0.5° or better

Dimension

1”, 2”, 15x15mm, 20x15mm, 20x20mm, 10x10mm, 5x5mm, etc.

Dimension Tolerance

±0.1 mm or better

Thickness

0.33mm, 0.43mm, 0.5mm, 1.0mm, etc.

Thickness Tolerance

±0.05 mm or better

Surface Finish

Single side polished (SSP)/Double sides polished (DSP)

Surface Roughness

Ra<10Å (5×5μm)

Package

Class 100 clean bag, Class 1000 super clean room