666-33 OD6 ULTRA Bandpass Filter



666-33 OD6 ULTRA Bandpass Filter


ULTRA Series bandpass filter with a 666 nm (± 2.0 nm) center wavelength (CWL), a 33 nm full-width at half-maximum (FWHM), and wide-range OD5/OD6 out-of-band blocking from 350 nm to 850 nm. This bandpass filter has exceptionally steep edges and greater than 95% average transmission from 652 nm to 680 nm. It is coated on a 2 mm thick fused silica substrate and mounted in a standard 25 mm (+0/-0.1 mm) diameter, 3.5 mm (± 0.1 mm) thick anodized aluminum ring. Alluxa ULTRA Series fluorescence filters are designed to optimize fluorescence instrument performance, resulting in bright, high contrast images of target molecules. ULTRA Series filters provide better overall performance than our standard fluorescence filters by using a combination of tight wavelength control, ultra-steep edges, deeper blocking, and the industry's highest transmission levels. All Alluxa optical filters are highly durable and hard-coated using our innovative SIRRUS™ plasma deposition process. Contact us for custom sizing.


Item Number 7723
Angle of Incidence 0 Degrees
Center Wavelength 666 nm ± 2.0 nm
FWHM 33 nm Nominal
Transmission Band(s) 652 to 680 nm > 95% T Average
Blocking Level OD6
Blocking Range(s)* OD6: 350 to 640 nm, 689 to 800 nm; OD5: 800 to 850 nm
Parallelism < 3.0 Arcseconds
Transmitted Wavefront Error < 0.25 Wave RMS @ 632.8nm
Substrate Type Fused Silica
Dimensions 25.0 mm Diameter
Filter Thickness 2.0 mm
Assembly Type Anodized Aluminum Ring
Assembly Thickness 3.5 mm
Main Fluorophore(s) Cy®5

Availability: In stock