Spectro Optics Releases Custom Bi₁₂SiO₂₀ (BSO) Functional Crystals with Integrated ITO, HR and AR Coatings

Spectro Optics introduces custom-coated Bi₁₂SiO₂₀ (BSO) photorefractive crystals with a multi-functional coating stack. The 0.5 mm thick BSO substrate features an ITO conductive coating of 16.4 Ω/sq, a dielectric high-reflection coating with Rabs >99% across 545–810 nm, plus an anti-reflection (AR) coating deposited on top of the ITO layer.

This integrated coating architecture combines stable conductivity, high reflectivity and low surface reflection loss. It is well suited for spatial light modulators, holographic vibrometry, laser resonators and other electro-optic and photorefractive applications.

Custom coating recipes and substrate dimensions are available. Full metrology data can be provided upon request for R&D prototyping and low-volume production. Contact our team for datasheets, sample options and quotations.