Front surface mirrors are coated with aluminum or dielectrics for maximum reflection. Simphoton provides both kinds of front surface mirrors: Metal coated mirror and Dielectric coated mirror.

1. Commercial quality flat window or precision window. Please refer to the optical window page. Unpolished back surface is also available.
2. Plano concave substrate. After HR coated on the concave face, it's a concave mirror.

Metal Coated Mirror
    Standard items are supplied front surface-coated with metal (Aluminium, Silver or Gold) overcoated with silicon monoxide (SiO2) or magnesium fluoride (MgF2).
Dielectric Coated High Reflection Mirror (Laser mirror)
After dielectric HR coaitng, the mirror have the very high relection for specified single wavelength or broadband wavelength. For laser application, the mirror surface has been coated with very high reflection (general >99.8%) at the laser wavelength.
Dichroic Mirror / Beamsplitter
With special designed multi layer dielectric coating, the mirror reflect some wavelength and transmission other wavelength at the same time.
It can be used to splitter or conbine different wavelength.
It can be also used in SHG laser system as Harmanic Separators.
Concave Mirror
After metal or dielectric high reflection coated on the concave substrates, it's a concave mirror. Concave mirror can be focus the light beam or imaging as a lens. The focal length of concave mirror is half of the curvature radius.

E-mail for RFQ: sales@simphoton.com
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