307.7-0.5 OD4 Ultra Narrow Bandpass Filter



307.7-0.5 OD4 Ultra Narrow Bandpass Filter


Ultra-narrowband optical interference filter with a 307.7 nm center wavelength (CWL), a 0.5 nm full-width at half-maximum (FWHM), and OD4 out-of-band blocking from 200 nm to 500 nm. This is a multi-cavity filter with transmission that is greater than 65% at 307.7 nm. This ultra-narrowband filter is coated on a 2 mm thick fused silica substrate and mounted in a 25.4 mm (+0/-0.2 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.


Item Number 7546
Angle of Incidence 0 Degrees
Center Wavelength 307.7 nm Nominal
FWHM < 0.7 nm
Transmission Band(s) 307.7 nm > 65% T Absolute
Blocking Level OD4
Blocking Range(s)* OD4: 200 to 301 nm, 315 to 500 nm
Filter Design Multi-Cavity
Substrate Type Fused Silica
Dimensions 25.3 mm Diameter
Filter Thickness 2.0 mm
Assembly Type Anodized Aluminum Ring
Assembly Thickness 5.0 mm

Availability: In stock


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