Description of Bismuth Silicate (BSO) Crystal Substrates
Bismuth silicate (Bi12SiO20) single crystal, abbreviation BSO substrate is an excellent material with highly efficient photoconductors with low dark conductivity that allows a build-up of large photo-induced space-charges.
BSO crystal is a good photorefractive crystal with a wide range of applications. It is a light yellow photoelectric/electro-optical crystal and a photorefractive crystal. It can be used in electro-optic readout optical memory (PROM), thin-film optical waveguide, photorefractive and phase conjugation.
Specifications of Bismuth Silicate (BSO) Crystal Substrates
Crystal structure :
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Cubic
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Lattice constant :
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a=10.146Å
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Growth method :
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Czochralski method
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Melting point :
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930℃
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Density :
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9.2g/cm3
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Mohs hardness :
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4.5 Mohs
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Dielectric constant :
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εS11/ε0 42.7、εT11/ε0 47.5
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Elastic stiffness coefficient ( x1011N/m2) :
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CE11 1.33、CE44 0.25
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The piezoelectric strain constants (C/m2 ) :
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e14 1.01
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Through the range (nm) :
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470~7500
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Electro-optic coefficient (x10 -12 M/V)
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r41 5
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Refractive index :
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2.45 @ 632.8nm
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Refractive index gradient (x10 -5 /cm) :
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< 5 @ 632.8nm
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Opticity (mm -1 ) :
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left 20° ~ @632.8nm
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Transmittance (%):
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69 @632.8nm
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Crystal orientation :
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<100>, <110>, <001> ±0.5°
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Standard Size:
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45x45x0.5mm, 10x10x0.5mm, 25x25x0.5mm
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Polishing:
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Single side polished or Both side polished
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Applications of Bismuth Silicate (BSO) Crystal Substrates
- Spatial light modulators
- Optical switches
- Pockels readout optical memory (PROM) applications
- Optical waveguides