Ultra Narrow Traditional Coated Bandpass Filters are ideal for use as laser line, laser cleanup, or laser excitation filters in demanding medical and laser applications. These filters provide OD 4 blocking by design, center wavelength tolerances as tight as 0.05nm, and bandwidths ranging from 0.2nm to 5.0nm. Multiple standard wavelength options including H-alpha hydrogen, HeNe laser, and Nd:YAG laser line are available. Rapid custom filters with bandwidth between 0.15 and 50nm and center wavelength between 340 and 2400nm are available. Please contact us for a quote.