740.2-1 OD4 Ultra Narrow Bandpass Filter



740.2-1 OD4 Ultra Narrow Bandpass Filter


Ultra-narrowband optical interference filter with a 740.2 nm center wavelength (CWL), a 1 nm full-width at half-maximum (FWHM), and wide-range OD4 out-of-band blocking from 300 nm to 1200 nm. This is a multi-cavity filter with transmission that is greater than 85% at 740.2 nm. This ultra-narrowband filter is coated on a 2 mm thick N-BK7 substrate and mounted in a 25 mm (+0/-0.1 mm) diameter, 3.5 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.


Item Number 7326
Angle of Incidence 0 Degrees
Center Wavelength 740.2 nm Nominal
FWHM < 1.2 nm
Transmission Band(s) 740.2 nm > 85% T Absolute
Blocking Level OD4
Blocking Range(s)* OD4: 300 to 724 nm, 756 to 1200 nm
Filter Design Multi-Cavity
Substrate Type N-BK7
Dimensions 25.0 mm Diameter
Filter Thickness 2.0 mm
Assembly Type Anodized Aluminum Ring
Assembly Thickness 3.5 mm

Availability: In stock


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