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Spectrogon US - Optical Filters 2024 LB
Photonics HandbookMaterials

Optical Coating: Materials and Deposition Technology

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Surface coatings used to control optical, mechanical and electrical properties are deposited as nano- and micrometer thicknesses of special materials.

CERAC, Inc., a subsidiary of Williams Advanced Materials; technical assistance from Pellicori Optical Consulting

Optical coatings are deposited as thin-film multilayers of a variety of materials using specific deposition techniques. Coatings are applied to optical components that are intended for use at wavelength regions between UV and far-IR. The materials and processes used to make these coatings are described here and in the attendant materials data tables. General material categories and deposition processes In Table 1, the chemical categories of the materials that are used for optical coating are segregated by spectral region; overlap exists between all regions. Table 2 lists the...Read full article

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    Glossary
    thin film
    A thin layer of a substance deposited on an insulating base in a vacuum by a microelectronic process. Thin films are most commonly used for antireflection, achromatic beamsplitters, color filters, narrow passband filters, semitransparent mirrors, heat control filters, high reflectivity mirrors, polarizers and reflection filters.
    CoatingsFeaturesdielectric coatingsfluoride compoundsOptical Materials & Coatingsoxide compoundsthin filmdepositionMaterials

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