BBO
High Temperature form BBO (a-BaB2O4) is a negative uniaxial
crystal. Features include wide transparency and phase matching ranges, large
nonlinear coefficient, high damage threshold and excellent optical homogeneity.
Physical and optical property
| Crystal Structure |
Trigonal, space group R3c |
| Melting Point |
1095 (+/-5¡æ) |
| Wavefront distortion |
l/8 per inch, measured by a double-pass interferometer
@ 632.8 nm |
| Transition Temperature |
925 (+/-5¡æ) |
| Hardness |
4.5 Mohs |
| Density |
3.85 g/cm3 |
| Absorption Coefficient |
< 0.1%/cm (at 1064 nm) |
| Hygroscopic Susceptibility |
low |
| Resistivity |
> 1011 ohm-cm |
Specifications
| Dimension |
1x1-20x20mm |
| Surface Quality |
20/10 Scratch and Dig |
| Beam Deviation |
<3 arc min. |
| Optical Axis Orientation |
+/-0.5 |
| Flatness |
l/4 @ 632.8 nm |
| Transmission Wavefront Distortion |
<¦Ë/4@632.8nm |
| AR-coating |
R<0.5% |
