Fluorescence Filters

Our fluorescence filters have high transmission, with transmittance higher than 85 % in UV, and larger than 90% in visible. (See spectra at the right, measured at wafer level before AR is applied on the back). As shown in the data sheet, we are able to make those fluorescence filters with very good uniformity. For instance, the centre wavelength variation over a 3” x 3” wafer is less than 0.5nm. This will result in much better image, especially in a system with large NA an large beam sizeFeatures

• High transmission: >90%
• High reflection (dichroic beam splitter): >98%
• Steep slope
• Hard dielectric coating with superior environmental reliability and durability

Applications

• Microscopy

For more information on Fluorescence Filters talk to BBN International Ltd