Notch Filters

Notch FiltersRugate notch filters are interference filters that have a deep, narrow rejection band while also providing high, flat transmission for the rest of the spectrum. Rugate notch filters feature low ripple and no harmonic reflections compared to standard notch filters, which are made with discrete layers of materials with different indices of refraction. They exhibit a high degree of environmental durability and extremely low wavelength shift at high temperatures. The center wavelength will shift to lower wavelengths when incident light is not collimated or at 0° AOI. These filters are especially useful in Raman applications.
1” Diameter 1064RNOTCHFILTERS-1064R
1” Diameter 488RNOTCHFILTERS-488R
1” Diameter 532RNOTCHFILTERS-532R
1” Diameter 632.8RNOTCHFILTERS-632.8R
Holographic Notch Filter for Raman Applications - 488 nmSuperNotchFilter-488H
Holographic Notch Filter for Raman Applications - 514 nmSuperNotchFilter-514H