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           Bismuth Silicate (Bi12SiO20):  Sillenite

Sillenite single crystals Bi12SiO20 ( BSO ) show unique combination of different physical properties. BSO crystals are very efficient photoconductors with low dark conductivity that allow to build up  large photo-induced space-charges. Also strong spectral dependence of the photoconductivity and their electro-optic properties allow to develop and produce  a wide range of optical device and systems. BSO crystals are used in spatial light modulators, dynamic real-time hologram recording devices, phase conjugation   wave mixing, optical correlators, optical laser systems for adaptive correction of ultrashort light pulses.

The fabrication Sillenite Oxide thin-film crystal structures by different technique permits the development of a long list of devices including optical waveguides,  integrated optical devices.    The relatively large electrooptic and Faraday effect of Sillenite Oxides makes them useful for optical fiber electric/magnetic fields sensors.

Material properties:

Crystal : Bi12SiO20    
Crystal Structure: cubic point group: 23
Transmission Range   microns (µ) 0.4 - 6
Refractive Index @ 633nm   2.54
Electro-Optic Coefficient   r41 pm/V 5.0
Dielectric Constant     56
Dark Resistance   Ohm cm 10 14