ULTRA Series Dichroic Filters

All ULTRA Series dichroic and polychroic filters can be custom specified to be ultra-flat in order to minimize distortion and maintain optimal performance in imaging and laser-based fluorescence systems. Integrating ultra-flat dichroics into these systems will result in crisp images, minimal focal shift, and accurate quantification of target molecules. Ultra-flat dichroic filters can be custom specified with better than 0.1 wave PV / inch flatness when measured at 632.8 nm.

Depending on the wavelength ranges and requirements of your system, ULTRA Series dichroic or polychroic filters can be custom designed to meet one or more of the following challenging specifications:

• Up to 99% transmission
• Up to 99.5% reflection
• Edge wavelengths from the UV to the mid IR
• Tolerances as tight as ± 0.5% of edge wavelength
• Edge transitions as steep as 1% of edge wavelength from 10% T to 90% T
• TWE as low as 0.01 wave RMS / inch measured at 632.8 nm

Up to 99% transmission
Up to 99.5% reflection
Edge wavelengths from the UV to the mid IR
Tolerances as tight as ± 0.5% of edge wavelength
Edge transitions as steep as 1% of edge wavelength from 10% T to 90% T
TWE as low as 0.01 wave RMS / inch measured at 632.8 nm

fluorescence microscopy
endoscopy
DNA sequencing
Raman spectroscopy