GGG Magneto Optical Crystals - Gadolinium Gallium Garnet Substrates 2.8-76mm with 7.4W/mK Thermal Conductivity
Price:
USD 20-500/pc
MOQ:
1pc
Delivery Time:
4-5weeks
Brand:
Crystro
Product Description
GGG Magneto Optical Crystals Overview
GGG (Gadolinium Gallium Garnet) single crystals and substrates offer exceptional mechanical, optical, and chemical properties, making them ideal for optical components, microwave isolators, and HTS substrates. These crystals are particularly valuable in infrared optical isolators operating at 1.3 and 1.5 μm wavelengths.
Key Advantages
- Large dimensions ranging from 2.8mm to 76mm diameter
- Low optical losses <0.1%/cm
- High thermal conductivity of 7.4W·m⁻¹·K⁻¹
- Exceptional laser damage threshold exceeding 1GW/cm²
Material Properties
| Property | Specification |
|---|---|
| Chemical Formula | Gd₃Ga₅O₁₂ |
| Lattice Parameter | a = 12.376 Å |
| Growth Method | Czochralski |
| Density | 7.13 g/cm³ |
| Mohs Hardness | 8.0 |
| Melting Point | 1725°C |
| Refractive Index | 1.954 at 1064nm |
Technical Specifications
| Parameter | Specification |
|---|---|
| Orientation | [111] within ±15 arc min |
| Wave Front Distortion | <1/4 wave @632nm |
| Diameter Tolerance | ±0.05mm |
| Length Tolerance | ±0.2mm |
| Chamfer | 0.10mm @45° |
| Flatness | <1/10 wave at 633nm |
| Parallelism | <30 arc seconds |
| Perpendicularity | <15 arc min |
| Surface Quality | 10/5 Scratch/Dig |
| Clear Aperture | >90% |
| Available Dimensions | 2.8-76mm diameter |
Applications
GGG crystals are essential for magneto-optical films, high-temperature superconductors, laser technology, telecommunications, and electronic applications. Their superior properties make them particularly suitable for demanding optical and microwave environments.
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Company
ANHUI CRYSTRO CRYSTAL MATERIALS Co., Ltd.
Location
No. 176, Yuner Rd, Yunhai Rd Industrial Park, Baohe District，Hefei City，Anhui Province
Contact Person
Wu