Notch filters

Defined spectral ranges are reflected with band-stop filters

Band-stop filters, also referred to as notch filters or band-rejection filters, are used to reflect or block specific predefined spectral ranges while allowing wavelengths to the left and right of this band to be transmitted. These filters can be engineered to have a very narrow band if required, ensuring precise selection of wavelengths. Unwanted extraneous radiation is reduced/blocked. 

• Very high reflection (up to almost 100%)
• Robust against external influences
• Spectral range: UV to IR
• Substrates: Borofloat, B270, float glass, selected plastics, etc.