Lithium Diborate (LBO)
Lithium borate (LBO) is a high-performance nonlinear laser crystal with an orthorhombic mm2 lattice. It consists of a continuous B,O7 network and lithium ions. Closely packed 0,0- ionic groups leave the LBO crystal almost free of impurities. CASTON grows high-quality LBO crystals using an improved molten-salt method for applications in many fields.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Crystal Structure | Trigonal jingxi, Space Group pna21, Lattice Group mm2 |
| Unit Cell Parameters | a=0.84473nm,b=0.73788nm，c=0.51395nm，z=2 |
| Melting Point | 834℃ |
| Mohs Hardness | 6 |
| Density | 2.47g/cm³ |
| Transmission Interval | 160-2600nm |
| Absorption Coefficient [1064nm] | <0,1%cm at 1064nm |
| Absorption Coefficient [532nm] | <0.3%cm at 532nm |
| Thermal Conductivity | 3.5W/m·K |
| Coefficient of Thermal Expansion dnx/dT | dnx/dT=-9.3x10⁻⁶/°C |
| Coefficient of Thermal Expansion dny/dT | dny/dT=-13.6x10⁻⁶/°C |
| Coefficient of Thermal Expansion dnz/dT | dnz/dT=(-6.3+2.1)x10⁻⁶/°C |
| Thermo-Optic Coefficient ax | ax=10.8x10⁻⁵/K |
| Thermo-Optic Coefficient ay | ay=-8.8x10⁻⁵/K |
| Thermo-Optic Coefficient az | az=3.4x10⁻⁵/K |
| Wavefront Distortion | <1/8 λ |
| Maximum Processing Dimensions | 30x30x25 or 10x10x45 or 30x10x10 mm |
| Cross-Section Dimensional Tolerance | +0.1mm/-0.1mm |
| Length Tolerance | +0.2mm/-0.2mm |
| Chamfer [45°] | 0.1mm@45° |
| Flatness [633mm] | <1/10 λ at 633mm |
| Parallelism | <10 arcsec |
| Perpendicularity | <5 arcmin |
Applications
Key Features
Datasheet
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Supplier Information
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