ZGP
ZnGeP2 (ZGP, zinc germanium phosphide) is considered an excellent mid- and far-infrared nonlinear optical crystal. It offers high thermal conductivity of 0.35W/cm·K, a large nonlinear coefficient d36=75pm/v, broad transmission from 0.67-13μm, high optical damage threshold and good mechanical properties for easy machining.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Physical Properties - Crystal | ZnGeP₂ |
| Physical Properties - Crystal Symmetry | Tetragonal |
| Physical Properties - Point Group | 42m |
| Physical Properties - Lattice Constant | 5.465 Å |
| Physical Properties - Lattice Constant | 10.771 Å |
| Physical Properties - Density | 4.175 g/cm³ |
| Optical Properties - Crystal | ZnGeP₂ |
| Optical Properties - Transmission Range | 0.74-12 µm |
| Optical Properties - Refractive Index nₒ [1.06 µm] | 3.2324 |
| Optical Properties - Refractive Index nₑ [1.06 µm] | 3.2786 |
| Optical Properties - Refractive Index nₒ [5.3 µm] | 3.1141 |
| Optical Properties - Refractive Index nₑ [5.3 µm] | 3.1524 |
| Optical Properties - Refractive Index nₒ [10.6 µm] | 3.0725 |
| Optical Properties - Refractive Index nₑ [10.6 µm] | 3.1119 |
| Optical Properties - Absorption Coefficient [1.06um] | 3.0 cm-1 |
| Optical Properties - Absorption Coefficient [2.5um] | 0.03 cm-1 |
| Optical Properties - Absorption Coefficient [5.0um] | 0.02 cm-1 |
| Optical Properties - Absorption Coefficient [7.5um] | 0.02 cm-1 |
| Optical Properties - Absorption Coefficient [10.0um] | 0.4 cm-1 |
| Optical Properties - Absorption Coefficient [11.0um] | 0.8 cm-1 |
Datasheet
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