SBN crystals
Main features
- Pure and doped by Ce, Cr, Co, Fe
- Efficient phase-conjugation
- Custom size, doping level, unpoled, antireflective coated and without electrodes 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, 75) crystals have excellent optical and photorefractive properties. They are available nominally pure and doped by Ce, Cr, Co or Fe dopants. Different composition SBN crystals found their application in electro-optics, acousto-optics, photorefractive, non-linear optics fields. 4Lasers provide free from inclusions and other inhomogenities SBN crystals, which are grown by Modified Stepanov method and available with linear dimensions up to 40 mm.
| Main properties | ||
|---|---|---|
| Composition | SBN:61 | SBN:75 |
| Crystal Structure | Tetragonal, 4 mm | Tetragonal, 4 mm |
| Lattice parameters | a = 12,46 Å, c = 3,946 Å | a = 12,43024 Å, c = 3,91341 Å |
| Density | 5,4 g/cm3 | 5,4 g/cm3 |
| Mohs hardness | 5,5 | 5,5 |
| Melting temperature | 1480°C | 1480°C |
| Curie temperature | 75°C | 56°C |
| Transparency range | 0,45-5,5 μm | 0,4-5,5 μm |
| Refractive index @633 nm | no = 2,3103 ne = 2,2817 |
no = 2,3117 ne = 2,2987 |
| Δn @633 nm | -0.0286 | -0.0130 |
| Transmission | 0,45-5,5 μm | 0,4-5,5 μm |
| Half-wave voltage (λ/2) | 240 V | 60 V |
| Dielectric constant, (T = 293 K) | 900 | 340 |
| Electrooptical coefficient | r13 = 45 pm/V r33 = 250 pm/V |
r13 = 65 pm/V r33 = 740 pm/V r42 = 40 pm/V |
| Pyroelectric coefficient | 0.065 μC × cm-2 × K-1 | 0.28 μC × cm-2 × K-1 |
| Dielectric Constant | 880 | 3400 |
| SBN:61 AND SBN:75 CRYSTALS | |
|---|---|
| Orientation | Short edge along tetragonal axis |
| Poling | Poled |
| Electrodes | Carbon-water electrodes |
| Clear aperture | 85% |
| Face dimensions tolerance | +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/[email protected],8 nm |
| Coatings | Uncoated |
| Mount | Unmounted |
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Material
Face dimensions
Length
Doping
SKU
PRICE
QUANTITY
SBN:61
5x5 mm
5 mm
CeO2 0,002 wt, %
6940
1650 €
SBN:61
5x5 mm
10 mm
CeO2 0,002 wt, %
6941
2050 €
SBN:61
5x5 mm
15 mm
CeO2 0,002 wt, %
6942
2550 €
SBN:61
5x5 mm
20 mm
CeO2 0,002 wt, %
6943
3200 €
SBN:61
5x5 mm
5 mm
CeO2 0,01 wt, %
6944
1650 €
SBN:61
5x5 mm
10 mm
CeO2 0,01 wt, %
6945
2050 €
SBN:61
5x5 mm
15 mm
CeO2 0,01 wt, %
6946
2550 €
SBN:61
5x5 mm
20 mm
CeO2 0,01 wt, %
6947
3200 €
SBN:61
5x5 mm
5 mm
CeO2 0,1 wt, %
6948
1650 €
SBN:61
5x5 mm
10 mm
CeO2 0,1 wt, %
6949
2050 €
SBN:61
5x5 mm
15 mm
CeO2 0,1 wt, %
6950
2550 €
SBN:61
5x5 mm
20 mm
CeO2 0,1 wt, %
6951
3200 €
SBN:61
5x5 mm
5 mm
undoped
73
1650 €
SBN:61
5x5 mm
10 mm
undoped
74
2050 €
SBN:61
5x5 mm
15 mm
undoped
75
2550 €
SBN:61
5x5 mm
20 mm
undoped
76
3200 €
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