SBN crystals
Main features
- Pure or doped with Ce
- Efficient phase-conjugation
- Custom size, doping level, unpoled, antireflective coated and electrodeless crystals are available upon request.
Application examples
- Optical information recording
- Pyroelectrical detectors
- Self-pumped self-conjugation mirror
- Optical correlators
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- Description
- Properties
- Standard specifications
Strontium-barium niobate (SrxBa(1-x)Nb2O6, SBN:x, x = 61) crystals feature excellent optical and photorefractive properties. They are available nominally pure or doped with Ce. Different composition SBN crystals found their application in electro-optics, acousto-optics, photorefractive, non-linear optics fields. 4Lasers provide inclusion-free and homogenous SBN crystals, which are grown by the Modified Stepanov method and available with linear dimensions up to 40 mm.
| Main properties | |
|---|---|
| Composition | SBN:61 |
| Crystal structure | Tetragonal, 4 mm |
| Lattice parameters | a = 12,46 Å, c = 3,946 Å |
| Density | 5,4 g/cm3 |
| Mohs hardness | 5,5 |
| Melting temperature | 1480°C |
| Curie temperature | 75°C |
| Transparency range | 0,45-5,5 μm |
| Refractive index @633 nm | no = 2,3103 ne = 2,2817 |
| Δn @633 nm | -0,0286 |
| Half-wave voltage (λ/2) | 240 V |
| Dielectric constant, (T = 293 K) | 900 |
| Electro-optic coefficients | r13 = 45 pm/V r33 = 250 pm/V |
| Pyroelectric coefficient | 0,065 μC cm-2 K-1 |
| Dielectric constant | 880 |
| SBN:61 CRYSTALS | |
|---|---|
| Orientation | Short edge along the tetragonal axis |
| Poling | Poled or unpoled |
| Electrodes | Carbon-water electrodes or no electrodes |
| Clear aperture | 85% |
| Face dimensions tolerance | +0,0/-0,2 mm |
| Thickness tolerance | ±0,2 mm |
| Parallelism error | <30 arcsec |
| Protective chamfers | <0,1 mm at 45° |
| Surface quality | 20-10 S-D over clear aperture, 60-40 S-D other surfaces |
| Surface flatness | <λ/4@632,8 nm |
| Coatings | Uncoated |
| Mount | Unmounted |
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Material
Face dimensions
Length
Doping
Surface quality
SKU
PRICE
QUANTITY
SBN:61
5x5 mm
5 mm
CeO2 0,002 wt, %
40/20 S/D
6940
1850 €
SBN:61
5x5 mm
10 mm
CeO2 0,002 wt, %
40-20 S-D
6941
2250 €
SBN:61
5x5 mm
15 mm
CeO2 0,002 wt, %
40-20 S-D
6942
2750 €
SBN:61
5x5 mm
5 mm
CeO2 0,01 wt, %
40-20 S-D
6944
1850 €
SBN:61
5x5 mm
10 mm
CeO2 0,01 wt, %
40-20 S-D
6945
2250 €
SBN:61
5x5 mm
15 mm
CeO2 0,01 wt, %
40-20 S-D
6946
2750 €
SBN:61
5x5 mm
5 mm
undoped
40-20 S-D
73
1850 €
SBN:61
5x5 mm
10 mm
undoped
40-20 S-D
74
2250 €
SBN:61
5x5 mm
15 mm
undoped
40-20 S-D
75
2750 €
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