SBN (Strontium Barium Niobate, SrxBa1-xNb2O6) Crystals
- Exceptional Photorefractive Effect: Superior for dynamic holography and real-time optical data storage.
- High Electro-optic Coefficient: Enabling efficient light modulation.
- Low Optical Damage Threshold: Excellent for high-sensitivity photorefractive applications.
- Piezoelectric and Pyroelectric Properties: Supporting applications in sensors and transducers.
- Nonlinear Optical Response: Suitable for second harmonic generation (SHG) and other nonlinear optical processes.
- Broad Transmission Range: Transparent from visible to near-infrared wavelengths.
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Description
Strontium Barium Niobate (SBN) crystals are ferroelectric, photorefractive materials with a distorted tetragonal tungsten bronze structure. With excellent electro-optic, photorefractive, piezoelectric, and nonlinear optical properties, SBN crystals are ideal for applications in optical information processing, dynamic holography, acousto-optic devices, and electro-optic modulation. Depending on the Sr/Ba ratio (typically SBN:60 or SBN:75), the physical properties can be tuned for different application needs.
Key Features and Properties:
- Exceptional Photorefractive Effect: Superior for dynamic holography and real-time optical data storage.
- High Electro-optic Coefficient: Enabling efficient light modulation.
- Low Optical Damage Threshold: Excellent for high-sensitivity photorefractive applications.
- Piezoelectric and Pyroelectric Properties: Supporting applications in sensors and transducers.
- Nonlinear Optical Response: Suitable for second harmonic generation (SHG) and other nonlinear optical processes.
- Broad Transmission Range: Transparent from visible to near-infrared wavelengths.
Typical Applications:
- Dynamic holographic storage and real-time holography
- Optical phase conjugation and beam coupling
- Electro-optic modulators and Q-switches
- Photorefractive two-wave and four-wave mixing devices
- Piezoelectric and pyroelectric sensors
- Nonlinear optics and frequency conversion
Specifications:
| Chemical Formula | SrxBa1-xNb2O6 (0.26 ≤ x ≤ 0.75) |
| Crystal Structure | Tetragonal Tungsten Bronze |
| Space Group | P4bm |
| Lattice Constants | a = b ≈ 12.45 Å, c ≈ 3.93 Å |
| Transparency Range | 400 nm – 5 μm |
| Electro-optic Coefficient (r33) | SBN:60 ~ 420 pm/V; SBN:75 ~ 1380 pm/V |
| Curie Temperature | SBN:60 ~ 348°C; SBN:75 ~ 95°C |
| Refractive Index (at 532 nm) | ~2.3 |
| Photorefractive Sensitivity | High; enhanced by doping |
| Available Forms | Rods, Plates, Slices, Custom shapes |
| Typical Sizes | φ5×20 mm, φ10×20 mm; 10×10×1 mm³ plates |
| Surface Quality | 10/5 scratch/dig |
| Surface Flatness | <λ/8 @ 632.8 nm |
| Orientation Options | [001], [100], [110] |
| Doping Options | Undoped, Ce-doped, Fe-doped |
Material Properties and Crystal Structure:
- Chemical Formula: SrxBa1-xNb2O6 (0.26 ≤ x ≤ 0.75)
- Crystal Structure: Tetragonal tungsten bronze (non-centrosymmetric)
- Space Group: P4bm
- Lattice Constants:
- a = b ≈ 12.45 Å
- c ≈ 3.93 Å
- Transparency Range: 400 nm – 5 μm
- Electro-optic Coefficient (r33):
- SBN:60 ~ 420 pm/V
- SBN:75 ~ 1380 pm/V (higher photorefractive sensitivity)
- Curie Temperature:
- SBN:60 ~ 348°C
- SBN:75 ~ 95°C
- Refractive Index: ~2.3 at 532 nm
- Photorefractive Sensitivity: High, adjustable via doping (e.g., Ce-doping)
Standard Product Sizes and Availability:
- Bulk crystals: rods or blocks
- Typical rod dimensions: φ5 mm × 20 mm, φ10 mm × 20 mm
- Plates or slices: up to 20×20 mm² (customizable)
- Thickness: 0.5 mm to 5 mm (as required)
- Surface quality: 10/5 scratch/dig (MIL-PRF-13830B)
- Surface flatness: <λ/8 at 632.8 nm
- Orientation options: [001], [100], [110] directions available
- Standard dopants: undoped, Ce-doped, Fe-doped (for enhanced photorefractive effect)
- Custom dimensions, doping levels, and orientations available
Customization Options:
- Custom Sr/Ba ratio (SBN:60, SBN:75, or others)
- Ce, Fe, or other doping for optimized photorefractive properties
- Different crystal cuts and orientations
- High-precision optical polishing and coatings (e.g., AR coating for specific wavelengths)
- Bulk crystal blocks for further processing
- Application-specific designs (e.g., acousto-optic devices, EO modulators)
Packaging and Delivery:
- Packaged in Class 100 cleanroom conditions
- Vacuum-sealed packaging with moisture-absorbing materials
- Protective carriers for rod- or plate-type crystals
- Full certification including material data sheets and inspection reports
Why Choose Our SBN (Strontium Barium Niobate) Crystals?
- High-purity raw materials and precise crystal growth control
- Strict quality assurance ensuring excellent optical homogeneity
- Comprehensive customization options to meet unique project needs
- Expertise in electro-optic and photorefractive applications
- Responsive customer service and technical support throughout the project
Ordering & Contact Information:
We offer flexible MOQ (Minimum Order Quantity), competitive pricing and global shipping. For custom orders or technical inquiries, please contact us for a detailed consultation!
