Semrock Fluorescence Filter Sets Now Offer Enhanced Performance

The improved dichroics offer extended reflection and transmission bands – each dichroic reflects light from the long-pass edge down to ultraviolet wavelengths (< 350 nm) and transmits light from the edge up to infrared wavelengths (> 950 nm). The extended bands enable new applications based on mechanisms such as photoactivation and photoswitching, fluorescence resonance energy transfer (FRET), and very large Stokes-shift fluorescence. Also, every dichroic now has an anti-reflection (AR) coating providing a guaranteed minimum average transmission (from 90% to) of 93% – typical transmission values are even higher. And with the steepest edges on the market and reflectivity > 98%, these dichroics offer the most efficient management of light in even the lowest-light-level experiments.

Filter set pricing remains unchanged with the new higher-performance dichroics. Four recently released High Performance / High Contrast filter sets for GFP and for FITC also use the enhanced dichroics, as do three new long-pass sets for DAPI, GFP and mCherry.

Semrock's industry-leading and proprietary hard-coated filter manufacturing process ensures permanent performance with no burn-out even under the most intense illumination conditions. Semrock filters are available from stock for same-day shipment with a 30-day no-hassle return policy and are covered under the company's five-year warranty. Custom-sized filters are available in under a week.