Products and Services
Spectral Metal Thin Film Coating
•Application Note: Spectrally Selective Metal Applications
DSI's innovative Spectral Metal breakthrough product is a dichroic hybrid coating that is designed to be highly reflective over selected bands of wavelengths and minimally reflective over the rest of the spectrum. Spectral Metal thin film coating combines the spectral advantages of glass mirrors with the cost-savings and durability of sheet metal fabrication. The base material is highly polished stainless steel. A "dark mirror" coating is initially deposited onto the substrate which optically couples the unwanted wavelengths into the metal. A highly-reflective dichroic coating is then coated onto the "dark mirror". The finished product is a spectrally-selective mirror that is highly durable, reliable and reflective.
Spectral Metal coatings operate over a wide range of angles and can be fabricated into many forms. For curved optics, the parts can be formed using standard sheet metal fabrication methods prior to coating. Curved collection optics can be fabricated as long "trough" reflectors and then laser-cut into segments of the desired length. Alternatively, DSI's Spectral Metal sheets can be laser cut into simple or complex shapes after the coating process. Fabrication of the sheets after coating eliminates the need for expensive tooling for the optics or the coating chamber.
Click Here To Download:•Application Note: Spectrally Selective Metal Applications
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