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CLBO cesium lithium borate (CsLiB6O10, CLBO) is an emerging crystal material with excellent deep ultraviolet nonlinear properties, mainly used in semiconductor detection, micro lithography technology, biomedicine, ultraviolet radar and other fields. CLBO crystal has the advantages of wide spectral range, large temperature tolerance, large reception angle, small dispersion angle, and high conversion efficiency. Therefore, CLBO is a very outstanding harmonic generator in the ultraviolet band (4HG&5HG of Nd: YAG lasers, Class I SHG wavelengths up to 237nm).
Product Description
CLBO cesium lithium borate (CsLiB6O10, CLBO) is an emerging crystal material with excellent deep ultraviolet nonlinear properties, mainly used in semiconductor detection, micro lithography technology, biomedicine, ultraviolet radar and other fields. CLBO crystal has the advantages of wide spectral range, large temperature tolerance, large reception angle, small dispersion angle, and high conversion efficiency. Therefore, CLBO is a very outstanding harmonic generator in the ultraviolet band (4HG&5HG of Nd: YAG lasers, Class I SHG wavelengths up to 237nm).
Main Features
Short wave cut-off wavelength up to 180nm
High conversion efficiency of Nd: YAG laser
Large effective nonlinear coefficient (about twice the KDP)
Large reception angle and small discrete angle
A vacuum UV light output of 193nm can be obtained by phase matching
Short growth period and can grow large-size crystals
Material Properties
| Crystal structure | Tetragonal crystal system, the space group |
| Crystal lattice parameters | a=b=10.494Å，c=8.939Å |
| Symmetry | Z=4 |
| Melting point | About 844.5℃ |
| Photo-permeability range | 180-2750nm |
| Effective nonlinear coefficient | 1.01pm/V @ 532nm，1.16pm/V @ 488nm，0.95pm/V @ 1064nm |
| Damage threshold | 26GW/cm2 |
| walk-off angle | 1.78°@1064nm，1.83°@ 532nm，0.98°@ 488nm |
| Angle allowable amplitude (mrad·cm) | 1.02 @ 1064nm，0.49 @ 532nm，0.84 @ 488nm |
| Wavelength allowable amplitude (nm·cm) | 7.03 @ 1064nm，0.13 @ 532nm，0.09 @ 488nm |
| Temperature allowable amplitude (℃·cm) | 9.4 |
| Nonlinear optical coefficient | deff(Ⅰ)=d36sinθmsin(2 φ)deff(Ⅱ)=d36sin(2θm)cos(2 φ) |
| Sellmeier Equation (λ in μm) | CLBO @ 20℃no2=2.2104+0.01018/（λ2-0.01424）-0.01258λ2ne2=2.0588+0.00838/（λ2-0.01363）-0.00607λ2(0.1914＜ λ ＜2.09 μm) |
Product Parameters
| Dimensional tolerance | (W±0.1mm)x(H±0.1mm)x(L+0.5mm/-0.1mm)（L≥2.5mm）(W±0.1mm)x(H±0.1mm)x(L+0.1mm/-0.1mm)（L＜2.5mm） |
| Optical aperture | ≧90% |
| Wavefront distortion | ≦λ/8 @ 633nm |
| Flatness | λ/8 @ 633nm |
| Finish | 10/5 |
| Parallelism | ≦20" |
| Verticality | ≦5 ′ |
| Angular deviation | △θ≦0.25°,△φ≦0.25° |
| Coating film | customized |
