Cr: ZnSe レーザー結晶
仕様
Parameter
| Crystal structure | Cubic |
| Poisson Ration | 0.28 |
| Thickness/Diameter Tolerance | ±0.05mm |
| Orientation Tolerence | < 0.5° |
| Surface Flatness | <λ/8@632nm |
| Wavefront Distortion | <λ/4@632nm |
| Surface Quality | 10-5(MIL-O-13830A) |
| Parallel | 30〞 |
| Perpendicular | 15ˊ |
| Clear Aperture | >90% |
| Chamfer | <0.2×45° |
| Melting Point | 1520 ºC |
| Thermal Expansion Coeff. @20ºC | 1.5×10-6/ºC |
| Thermal Conductivity Coeff. @20ºC | 14 W/m/ºK |
| Specific Heat | 0.79 J/g K |
| Density | 5.27 g/cm³ |
| Durability Knoop Hardness | 112 kgf/mm² |
| Mohs Hardness | 8.5 |
| Young‘s Modulus | 67 GPa |
| Modulus of Rupture | 55 MPa |
| Orientation | <111>or <100> |
| Laser Wavelengths | 2150 – 2600 nm |
| Emission Linewidth | <1 nm |
| Emission Cross-section (@1064nm) | 9×10-19 cm² |
| Intrinsic Loss @1064nm | <0.003 cm-1 |
| Refractive Index (n) @ 1650nm | 2.455 |
| Thermal Optical Coeff. (dn/dT) @nm | 61×10-6/ºC |
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