Precision Optics

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Filters

  Birefringent Filter

  Laser Line Interference Filter

  Individual Neutral Density Filter

  Bandpass Filter

Laser Optics

Coloured Optical Glass

IR Materials

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Filters

Absorption, and particularly wavelength selective absorption is an important factor in the function of the filters. The two most commonly used absorbers are thin metallic films which are particularly insensitive to wavelength for absorption, and colored glasses which absorb wavelengths varied by as much as several orders of magnitudes in only tens of nanometers. Interference filters are multilayer dielectric thin film devices. Metallic films, colored glasses and thin dielectric films are used in Dream Lasers filters.

Birefringent Filters

Laser Line Interference Filters

Individual Neutral Density Filters

Bandpass Filters

Please refer to the Glossary and Technology for more information about waveplates.

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