제품 설명
In optical communication equipment, 1.3 μ And 1.5 μ The core part of the optical isolator is YIG or big film placed in magnetic field. The GGG single crystal substrates with different tangential directions can match the crystal lattice of this kind of magneto-optical materials, so as to ensure the successful epitaxial growth of YIG and big films.
In the field of magnetic refrigeration, GGG Crystal has been successfully used in the temperature range below 20K for market he Ⅱ flow and pre stage refrigeration of helium nitrogen liquefaction.
Main Advantages:
Low optical losses (<0.1%/cm)
High thermal conductivity (7.4W m-1K-1)
높은 레이저 손상 임계값(>1GW/cm2)
Typical applications:
Substrate materials for YIG and BIG magneto-optical epitaxial membranes
Magnetic bubble memory storage
Magnetic refrigeration
재료 특성
| Material | GGG |
| Chemical Formula | Gd3Ga5O12 |
| Crystal Structure | Cubic |
| 격자 상수 | a=12.383 Å |
| Growth Method | Czochralski |
| Hardness | 8.0 |
| 밀도 | 7.13g/cm³ |
| 녹는 점 | 1725℃ |
| Refractive Index | 1.954 @ 1064nm |
기술적인 매개변수
크리스로 제공
| Dimensions | Max Diameter 101.6mm (4 inch) |
| Thickness | 0.5mm Other thickness upon request |
| Polishing | Single or double sides polishing |
| Orientation | <111>±0.2° |
| Orientation Flat | 2°（within 1° for special requirement） |
| Ra | Ra≤1nm, EPI ready |
| Angle of Crystalline | Special size and orientation are available upon request |
