Semrock Verona Long-pass Raman Edge Filter

Semrock's long-pass Verona optical filters provide industry-best solutions for deep blocking close to the laser line for Raman applications. Verona is just the beginning of our evolving Raman product line to match the rapidly developing Raman market. Our understanding of how crucial flat transmission is for the maximal collection of weak Raman signals is why we offer a filter with both low ripple and improved steepness from our RazorEdgeâ„¢ series, making the Verona family the new gold standard for Raman analysis. Push the limits of what you can see with your Raman system with Verona Raman filters.

Features:

• Transition width (cut-off) ? 0.2% relative to the edge wavelength while still achieving transmission > 90% and blocking > OD6
• Steepness improved from our RazorEdge series
• Low ripple to provide the best signal-to-noise ratio and allow for maximal collection of weak Raman spectral features
• 532 nm and 785 nm wavelengths now available, (488 nm and 633 nm coming soon)
• Deep blocking of > OD 6 at the laser line that eliminates bleed-through of excitation light
• Hard coated for high laser damage threshold to prevent performance degradation
• With our award-winning, proprietary Kola Deep spectral measurement system, we provide the spectral data to prove our superior deep blocking and edge-steepness performance
• Availability in 12.5mm housed standard sized parts and 10mm clear aperture, providing more real estate for your most demanding applications