Dielectric mirrors combine high reflection values with outstanding durability characteristics. These coatings can exhibit significantly higher reflectance values than metallic films over specific wavelength intervals. Dielectric mirrors can be optimized for a particular angle of incidence and reflection bandwidth in the UV, visible or infrared regions. Broader reflectance region or high reflectance values at different bandwidths can be obtained by combining two or more dielectric stacks centered at shifted design wavelengths.

All-dielectric mirrors are extensively used in laser applications. Our laser mirrors exhibit extremely low absorption and scatter, and are specifically designed to withstand high power laser energy levels. At normal incidence our standard mirrors will reflect better than 99.7% and can be optimized for different angles of incidence.

Laser mirror		Double reflector
All dielectric reflector for any single laser wavelength between 350nm and 1600nm R>99.7% at specified wavelength and angle of incidence from 0° to 45° At 45° Rs>99.9%, Rp>99%		For any combination of two wavelengths between 350nm and 1600nm R>98% at the lower wavelength and R>99% at the higher wavelength For any AOI between 0° to 45°
Broadband dielectric reflector		Dielectric reflector - infrared
Extremely durable, meets the requirements of MIL-C-675C Rave>99% 450nm to 650nm		Can be applies to most substrates, meets the requirements of MIL-C-675C Rave>99% 3.0µm to 5.0µm

Hot and cold mirrors are used to separate the infrared radiation (heat) from the visible part of the spectrum. These mirrors are extensively used in optical systems which are temperature sensitive, since most of the incident energy is either transmitted of reflected with minimal absorption.

Cold mirror		Hot mirror
Rave>90% 450nm to 700nm Tave>85% 800nm to 2500nm Can be optimized for different incidence angles		Tave>80% 450nm to 675nm Rave>95% 750nm to 1200nm Can be optimized for different incidence angles

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