371-0.35 OD6 Ultra Narrow Bandpass Filter

Ultra-narrowband optical interference filter with a 371 nm center wavelength (CWL), a 0.35 nm full-width at half-maximum (FWHM), and wide-range OD6 out-of-band blocking from 330 nm to 700 nm. This is a multi-cavity filter with transmission that is greater than 80% at 371 nm. This ultra-narrowband filter is coated on a 2 mm thick S-BSL7 substrate and mounted in a 25 mm (+0/-0.1 mm) diameter, 5 mm (± 0.1 mm) thick anodized aluminum ring. Alluxa ultra-narrow bandpass filters have the highest transmission and narrowest bandwidths currently available. And because they are hard-coated using our innovative SIRRUS? plasma deposition process, all Alluxa optical filters are highly durable and resistant to laser damage. Contact us for custom sizing options.