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Strontium-Barium Niobate (SrxBa(1-x)Nb2O6) SBN is an excellent optical and photorefractive material. Nominally pure and doped by Ce, Cr, Co, Fe. SBN crystals of different compositions are used in elecro-optics, acousto-optics, photorefractive non-linear optics. A new growing technique (Stepanov Method)(*) provides excellent optical quality single crystals, free of growth striations, inclusions and other inhomogeneities, as well as definite cross section and linear dimensions up to 80mm. SBN crystalline elements meet the requirements for different applications. Based on this unique crystal growing technique, large high quality SBN optical elements and photorefractive cells are available.
(*) Temporarily unavailable
SBN x=0.60 |
SBN x=0.75 |
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Crystal structure |
4mm |
4mm |
Cell parameters |
a = 12.46 ± 0.05Å |
a = 12.43024 ± 0.00002Å |
c = 3.946 ± 0.0005Å |
c = 3.91341 ± 0.00001Å |
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Melting point |
1500 ± 10°C |
1500 ± 10°C |
Mohs hardness |
5.5 |
5.5 |
Density |
5.4g/cm3 |
5.4 g/cm3 ± 0.01 |
Transparency range |
0.35-6.0µm |
0.35-6.0µm |
Refractive indices |
ne = 2.33 |
ne = 2.35 |
@l= 0.51µm |
no = 2.36 |
no = 2.37 |
Absorption coefficient |
0.3cm-1 |
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@l = 0.44µm |
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Thermo-optic coefficient dne/dT |
3x10-4K-1 |
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Thermal conductivity |
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@25°C |
0.006 W/cm*K |
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@1370-1470°C |
0.008 W/cm*K |
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Electro-optic coefficient |
r13=47pm/V |
r13=67pm/V |
r33=235pm/V |
r33=1340pm/V |
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Curie temperature |
75°C |
56°C |
Half wave Voltage |
240 V |
48 V |
Dielectric constant |
880 |
3400 |