ScAlMgO4 Crystal Substrates - Products - MetaLaser INC
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ScAlMgO4 Crystal Substrates
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Product: Views:381ScAlMgO4 Crystal Substrates 
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Last updated: 2018-04-22 06:20
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Description

ScAlMgO4(MgScAlO4,SCAM) crystal is a kind of GaN and ZnO heteroepitaxy recently developed with the ideal substrate material, currently it match the GaN and ZnO best in the new substrate materials.ScAlMgO4 crystals are hexagonal system,which lattice constant a = 0.3246 nm, c = 2.5195 nm, with rhombohedron layered structure, similar to wurtzite nitrides and the structure of zinc oxide.ScAlMgO4 crystal is a kind of ideal substrate material for GaN and ZnO epitaxy, which is theminimum lattice mismatch with GaN and ZnO.

Features

Best lattice match with GaN and ZnO

HIGH transmisson after polishing

High slope efficiency

Applications


ScAlMg2O4 substrate


Main Specification

Materials

ScMgAlO4

Orientation

[0001] or [10-10] < ±0.5°

Parallel

10〞

Perpendicular

surface Quality

10/5

Wavefront Distortion

λ/4@632nm

Surface Flatness

λ/8@632nm

Clear Aperture

>95%

Chamfer

<0.1×45°

Thickness/Diameter Tolerance

±0.05 mm

Maximum dimensions

dia 50×100mm

Coatings

AR/AR@940+1030;HR@1030+HT@940+AR1030;

Material characteristics

Physical and chemicalcharacteristics

Properties  

ScMgAlO4

Crystal structure

hexagonal crystal system

Lattice constant

a = 0.3246nm, c=2.5195nm

Density

3.64 g/cm3

Mohs hardness

4-5 Mohs

Thermal expansion coefficient

A=7.45 × 10-6 / ℃

Standard product




http://www.meta-laser.com/

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