MgAl2O4 Superconducting Thin Monocrystalline Substrate 10x10x0.5mmt 1sp/2sp

MgAl2O4 Superconducting Thin Monocrystalline Substrate 10x10x0.5mmt 1sp/2sp

  • High Light

    magnesium oxide


    wafer substrate

  • Material
    (MgAl2O4) Or Co:MgAl2O4
  • Common Size
    10x10 20x20
  • Orientation
  • Color
  • Application
    High Temperature Superconducting Junction Technology
  • Product Name
  • Place of Origin
  • Brand Name
  • Model Number
    (MgAl2O4) or Co:MgAl2O4
  • Minimum Order Quantity
  • Price
    by case
  • Packaging Details
    single wafer package in 100-grade cleaning room
  • Delivery Time
  • Payment Terms
    T/T, Western Union, MoneyGram
  • Supply Ability

MgAl2O4 Superconducting Thin Monocrystalline Substrate 10x10x0.5mmt 1sp/2sp

Magnesium aluminate spinel (MgAl2O4) or Co:MgAl2O4 crystal substrate crystals size 10x10x0.5mmt 1sp/2sp for radars


Product Name: Product Description:



Product Name: Magnesium aluminate (MgAl2O4) crystal substrate
Product Description: Magnesium aluminate (spinel) single crystals are widely used in acoustic and microwave devices and fast IC epitaxial substrate. Found that it was good while group III-V nitride substrate of the device. MgAl2O4 crystal because of its crystal structure is difficult to maintain and difficult to grow, after several years of efforts, the Branch crystal company can provide the best quality in the world the size of MgAl2O4 crystals.
Technical parameters:
Crystal structure Cube
Lattice constant a = 8.085Å
Growth method Czochralski method
Mp 2130 °C
Density 3.64g/cm3
Mohs hardness 8 Mohs
Thermal expansion coefficient 7.45 × 10 -6 / °C
Velocity 6500m / s, [100] shear wave
Propagation loss (9GHz) 6.5db/us
Color and Appearance White transparent

<100>, <110>, <111> Tolerance: + / -0.5 degrees

dia2 "x0.5mm, 10x10x0.5mm, 10x5x0.5mm

Single throw or double throw, Ra <5A

Note: Can be customized orientation and size.

Standard Packaging: 1000 clean room, 100 clean bag or single box packaging
Chemical formula Co2+:MgAl2O4
Crystal structure Cubic
Lattice parameters 8.07Å
Density 3.62 g/cm3
Melting Point 2105 °C
Refractive Index n= 1.6948 @1.54 µm

Thermal Conductivity


0.033 W
Specific Heat/ (J·g-1·K-1) 1.046

Thermal Expansion

/(10-6 /°C@25°C)

Hardness (Mohs) 8.2
Extinction Ratio 25 dB
Orientation [100] or [111] < ±0.5°
Optical density 0.1-0.9
Damage Threshold >500 MW/cm2
Doping concentration of Co2+

0.01-0.3 atm%


1. Co2+:MgAl2O4is a relatively new material for passive Q-switching in lasers emitting from 1.2 to 1.6μm, in particular, for eye-safe 1.54μm Er:glass laser, but also works at 1.44μm and 1.34μm laser wavelengths.

2. High absorption cross section (3.5×10-19 cm2) permits Q-switching of Er:glass laser without intracavity focusing both with flash-lamp and diode laser pumping.

3. Negligible excited-state absorption results in high contrast ratio of Q-switch, i.e. the ratio of initial (small signal) to saturated absorption is higher than 10.



Suitable for 1540 nm eye-safe lasers

High absorption section

Negligible excited state absorption

High optical quality

Uniformly distributed Co


MgAl2O4 Superconducting Thin Monocrystalline Substrate 10x10x0.5mmt 1sp/2sp 0



Magnesium aluminate (spinel) single crystals are widely used in sonic and microwave devices and in the preparation of epitaxial substrates of III-V nitride devices.


Applications for co doped :

Eye-safe 1540 nm Er:glass laser

1440 nm laser

1340 nm laser

Eye-safe laser range finder



Sapphire/ SiC/ GaN/GaAs/ InP/ MgO single crystal

MgAl2O4 Superconducting Thin Monocrystalline Substrate 10x10x0.5mmt 1sp/2sp 1


Q: Are you trading company or manufacturer ?

A: We are factory that is fabricating sapphire &sic wafers.

Q: How long is your delivery time?

A: Generally it is 3-5 days if the goods are in stock. or it is 7-10 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=5000USD, 100% in advance. Payment>=5000USD, 50% T/T in advance ,balance before shippment.


Read before inquiry:
I. If I want to customize, you need to tell me what types do you need?

Such as MgO,STO, GGG and LAO etc. And the size of materials, orientation, related parameters and what you will use it for are also very important information we need to know.


II.There are many kinds of products in our products. The parameters of each product are different. If you want to know any crystal materials, we can provide detailed information. For you to choose.