Alpha-BBO Crystals
Wide Spectral Region: Large birefringence from 189 nm to 3500 nm.
Exceptional Transmittance: Particularly in the UV region.
Superior Physical Properties: High optical transparency, surpassing optical homogeneity, low hygroscopicity, and high damage threshold.
Applications: Polarizers, Polarizing Beam Displacers, Phase Retarders, Birefringent Plates, Time Delay Compensators, High-Power and UV Applications, etc.
Alpha-BBO (α-BBO) is the high-temperature phase of BaB2O4 crystal. It is a negative uniaxial crystal recognized for its large birefringence over a wide spectral region from 189 nm to 3500 nm. While it shares many physical, chemical, thermal, and optical properties with beta-BBO, α-BBO does not exhibit nonlinear optical (NLO) properties due to its centrosymmetric structure. Therefore, it is not suitable for NLO applications such as second harmonic generation (SHG), where beta-BBO is recommended.
Specifications:
| Material | α-BBO |
| Size(mm) | 1-40mm |
| Surface Quality | 10/5 S/D |
| Optical Axis Orientation | <6 arc min |
| Parallelism | 10 arc sec |
| Flatness | λ/4@633nm |
| Clear Aperture | >90% of full aperture |
| Coating | AR coating |
| Mount | Upon customer’s requests |
Key Features:
- Wide Spectral Region: Large birefringence from 189 nm to 3500 nm.
- Exceptional Transmittance: Particularly in the UV region.
- Superior Physical Properties: High optical transparency, surpassing optical homogeneity, low hygroscopicity, and high damage threshold.
Applications:
- Polarizers: For controlling the polarization of light.
- Polarizing Beam Displacers: Used in various optical systems.
- Phase Retarders: For changing the phase of light waves.
- Birefringent Plates: Utilized in many optical devices.
- Time Delay Compensators: For managing time delays in optical systems.
- High-Power and UV Applications: Due to its excellent UV transmittance and physical robustness.
Kingwin Optics provides high-quality α-BBO crystals and custom optical components designed to deliver exceptional performance across a broad range of high-power and UV applications. For more information or to inquire about α-BBO crystals, please visit our website.
