eSource Optics Ultraviolet (UV) Optical Bandpass Filters are available at specific peak wavelengths over the Ultraviolet wavelength range of 220nm to 320nm.  Both Narrow & Broad Bandwidth UV Optical Bandpass Filter designs are available and designated as "FNB" having a 20nm FWHM, and "FBB" having a 35-50nm FWHM. 

All UV Optical Bandpass Filters are available in standard 12.7mm, 25.4mm, and 50.8mm Diameters. UV Optical Bandpass Filters are metal-dielectric-metal (MDM) design thin-film UV Bandpass Filters supplied as Unmounted and Open-Faced Filters. 

Open-Faced UV Optical Bandpass Filters include a high purity UV grade Fused Silica substrate over-coated with the MDM filter coating. All UV filter substrates are highly polished to a 20-10 scratch & dig surface quality with less than 3 arc minutes parallelism. 

Open-Faced UV Optical Bandpass Filters are fairly soft and must be handled with due care. For added durability and protection from the environment, UV filters can be special ordered with a UV Fused Silica cover window that is edge sealed to the Open-faced filter.  For more information on covered & edge sealed  UV Optical Filters and/or UV filter peak wavelengths not listed below, please contact eSource Optics.

All eSource Optics UV Optical Bandpass Filters are supplied with individual % Transmission Calibration Curves detailing normal incidence UV spectral performance characteristics.  UV Optical bandpass Filters are mainly used in UV light source applications requiring a narrow spectral bandwidth and a high signal-to-noise ratio.

For more information on UV Optical Bandpass Filters, please refer to our VUV-UV Optical Filter Information Page . 

                                        

See typical VUV-UV Narrowband Filter "FNB" Transmission Curves

See typical VUV-UV Broadband Filter "FBB" Transmission Curves   

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         Also see eSource Optics VUV Narrowband Optical Bandpass Filters