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gsgg substrate
gsgg substrate

GSGG Substrates

GGG (12.373Å) has a similar lattice constant of YIG (12.376Å), it is widely used as the substrate material of YIG magneto-optical thin film. However, in order to improve the magneto-optical optimum value of magneto-optical thin film, sometimes it is necessary to select a single crystal substrate with a larger lattice constant. GSGG (12.554Å) is that the 2 Ga of the octahedron in the GGG crystal are replaced by Sc with a larger ionic radius, thus having a larger lattice constant.


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


Application of GSGG Substrates


  • Microwave isolators

  • Optical communication

  • Magnetic refrigeration


Advantages of GSGG Substrates


  • Low optical loss

  • High thermal conductivity

  • High laser damage threshold

  • Good mechanical properties and chemical stability


Ability of GSGG Substrates


  • Orientation:<111>, etc.

  • Dimension: 10x10mm, 10x5mm, 5x5mm, etc.

  • Thickness: 0.5mm, 1.0mm, etc.

  • Available items: substrate, blanks and customized optics


Specification and Properties of GSGG Substrates

  

Crystal Structure

Cubic

Growth Method

Czochralski

Lattice Constant

a=12.554 Å

Melt Point

1750 ℃

Purity

99.99%

Density

7.09 g/cm3

Hardness

7.5 Mohs

Refractive Index

1.95

Orientation

<111>, etc.

Orientation Tolerance

±0.5° or better

Dimension

10x10mm, 10x5mm, 5x5mm, etc.

Dimension Tolerance

±0.1 mm or better

Thickness

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≤5Å (5×5µm)

Package

Class 100 clean bag, Class 1000 super clean room


Lattice Constants of Several Garnet Crystals Containing Gallium of GSGG Substrates


Crystal name

GGG (Gd3Ga5O12)

YSGG (Y3Sc2Ga3O5)

CaMgZr:GGG (Gd2.6Ca0.4)(Ga4.1Mg0.25Zr0.65)O12

GYSGG (Gd0.63Y2.37Sc2Ga3O12)

GSGG (Gd3Sc2Ga3O12)

Lattice constant

12.373 Å

12.426 Å

12.480 Å

12.507 Å

12.554 Å

Diffraction (2θ)

51°7′

50°44′

50°43′

50°40′

50°22′


Contact Us
Welcome your presence, you can send us an email, we will get in touch with you within 24 hours.
Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
sales@ostphotonics.com; info@ostphotonics.com +86-0571-86780460