589.16-0.5 OD6 Ultra Narrow Bandpass Filter

Ultra-narrowband optical interference filter with a 589.16 nm center wavelength (CWL), a 0.5 nm full-width at half-maximum (FWHM), and wide-range OD6 out-of-band blocking from 200 nm to 1200 nm. This is a multi-cavity filter with moderately steep edges, a flat top, and transmission that is greater than 80% at 589.16 nm. This unmounted ultra-narrowband filter is coated on a 5.3 mm thick Borofloat?? substrate and and is 12.5 mm (?± 0.1 mm) in diameter. 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.