Nd:GGG
Nd:GGG is an excellent crystal for solid-state heat capacity lasers and high-power pulsed solid-state lasers. Because of its high density and large heat capacity, it is very suitable for heat capacity work. Nd:GGG crystals can be grown by the melt pulling method planar interface growth technology to obtain large-sized and high-quality crystals, so they are the preferred materials for high-energy heat-capacity solid-state lasers and high-average-power pulsed solid-state lasers.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Crystal structure | Cubic system |
| Lattice constant | 12.383 Å |
| Melting point | 1725°C |
| Density | 7.1 g/ cm3 |
| Moh's hardness | 8 |
| Coefficient of thermal expansion | 8 x 10 -6 /K |
| Poisson's ratio | 0.28 |
| Thermo-optic coefficient dn/dT | dn/dT =17 x10 -6 /K |
| Doping concentration [Nd] | Nd:0.5~3at% |
| Orientation | [111], ± 5° |
| Wavefront distortion [25mm；@632.8nm；crystal rod] | ≤1/2λ/25mm@632.8nm (crystal rod) |
| Extinction Ratio [@632.8nm；crystal rod] | ≥20dB @632.8nm (crystal rod) |
| Crystal size | Diameter: 2~70mm, Length: 3~100mm or customized according to customer requirements |
| Dimensional tolerance | Diameter: +0.00/-0.05mm, Length: ± 0.5mm |
| Cylindrical processing | 400# abrasive fine grinding or polishing |
| Parallelism of end faces [Crystal Rod] | ≤10" (Crystal Rod) |
| Flatness of end face [@632.8nm；crystal rod] | ≤ λ/4@632.8nm (crystal rod) |
| AR Coating Reflectance [@1064nm] | ≤0.25% @1064nm |
| Coating anti-laser damage threshold | ≥500MW/ cm2 |
Key Features
Datasheet
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