ECI uses Ion Beam Sputtering to produce many different types of coatings including:
AR (Antireflective) Coatings
AR coatings are designed to utilize destructive interference to reduce Fresnel reflections produced when light passes between two mediums of different index. AR coatings can be optimized for narrowband, broadband or multiband applications.
Dielectric Mirror Coatings
Dielectric Mirror coatings utilize constructive interference to create reflectivity over a given wavelength region. Dielectric mirror coating can be optimized for narrowband, broadband and multiband applications.
Shortwave Pass Filter Coatings
Shortwave Pass Filters are designed to reject, or block, longer wavelength regions and allow shorter wavelength regions to pass though.
Longwave Pass Filter Coatings
Longwave Pass Filters are designed to reject, or block, shorter wavelength regions and allow longer wavelength regions to pass though.
Bandpass Filter Coatings
Bandpass Optical Filters are designed to pass a certain wavelength range, which blocking both longer and shorter wavelengths. Bandpass filters can be designs for both narrow and wide passbands.
Dichroic Filter Coatings
Dichroic Filters are designed to separate out two discrete wavelength regions. These types of filters are typically either shortwave pass or longwave pass filters that are oriented at non-normal incidence…usually 45°.
Dielectric Beamsplitter Coatings
Dielectric Beamsplitters are designed to partially reflect and transmit light with a specific ratio over a given wavlelength region. Dielectric beamsplitters can be designed for narrowband and broadband applications.
Notch Filter Coatings
Notch Filters are designed to reject a certain wavelength region while allowing both longer and shorter wavelength regions to pass through. Notch filters can be viewed as the inverse of bandpass filters. ECI deposits Notch Filters for narrowband, broadband, and multiband applications.