397.8-0.37 OD6 Ultra Narrow Bandpass

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397.8-0.37 OD6 Ultra Narrow Bandpass

Description

Details
Ultra-narrowband optical interference filter with a 397.8 nm center wavelength (CWL), a 0.37 nm full-width at half-maximum (FWHM), and wide-range OD6 out-of-band blocking from 300 nm to 1200 nm. This is a multi-cavity filter with steep edges, a flat top, and transmission that is greater than 80% at 397.8 nm. This ultra-narrowband filter is coated on a 3 mm thick N-BK7 substrate and mounted in a 30 mm (± 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.

Specifications

Item Number 7557
Angle of Incidence 0 Degrees
Center Wavelength 397.8 nm Nominal
FWHM < 0.45 nm
Transmission Band(s) 397.8 nm > 80% T Absolute
Blocking Level OD6
Blocking Range(s)* OD6: 300 to 389 nm, 406 to 1200 nm
Filter Design Multi-Cavity
Substrate Type NBK-7
Dimensions 30.0 mm Diameter
Filter Thickness 3.0 mm
Assembly Type Anodized Aluminum Ring
Assembly Thickness 5.0 mm
*Auxiliary blocking typical based on the displayed spectrum.
†For filters with less than 1nm bandwidth, measurement limitations may result in slight transmission variation. Please contact us for more information.

Availability: In stock

$2,828.00
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