Raman spectroscopy and microscopy are powerful, non-destructive analysis techniques that require the ability to resolve signals from weak, inelastically scattered light spectrally adjacent to the laser line. These measurements generally face two limitations: (1) Raman scattering cross sections are tiny, requiring intense lasers and sensitive detection systems just to achieve enough signal; and (2) the signal-to-noise ratio is further limited by fundamental, intrinsic noise sources like sample autofluorescence.
IDEX Health and Science understands these challenges, and we are proud to announce our latest Semrock-brand optical filters are designed from the ground up specifically for Raman instruments. The new Verona™ optical filters product line has been designed with your needs in mind:
- With transition width (cut-off) ≤ 0.2% allowing for maximal unobstructed signal collection two times our actual Semrock RazorEdge E Grade filters
- 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
- New Wavelengths are now available in 532 nm and 785 nm, with additional options (488 nm and 633 nm) coming soon. Contact us for information about the 532 nm
- 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
