P12607 Broadband Notch Filter
Double-pass notch filter passing vivid violet (395 – 455 nm) and rich red (655 – 760 nm) while plunging green-cyan light below 1 % for a clean magenta spectrum.
- Violet passband: 395 – 455 nm, > 90 % T
- Deep notch: < 1 % T 470 – 610 nm
(valley ≈ 0.2 % T) - Red/NIR passband: 655 – 760 nm, 92 – 94 % T
- Edge steepness: ~15 nm 90 → 10 % transitions
- Construction: Ion-assisted hard-oxide; 5 – 450 mm shapes, 0.21 – 3.8 mm thick
- Custom options: Ripple smoothing, AOI tuning, rapid prototypes
Learn more
P12607 transmits two clear windows—one in the near-UV/violet (≈ 395 – 455 nm) and one in the deep-red
(≈ 655 – 760 nm)—while pushing the entire green–cyan band down to detector noise. Transmission exceeds
88 – 92 % through the violet band, drops below one percent from ~470 nm to 610 nm, then rockets back above
90 % by ~655 nm and rides 92 – 94 % out past 750 nm. Ion-assisted hard-oxide coatings shrug off heat,
humidity, solvents, and repeated cleaning. KUPO can coat Borofloat®, soda-lime, Schott D263 T, or Corning
Eagle XG in any outline—from 5 mm chips to 450 mm plates, 0.21 – 3.8 mm thick—and ship prototypes in
about two weeks.
Typical uses: violet-excite/red-detect fluorescence, magenta stage lighting, UV + red machine-vision,
green-band suppression in Raman or multispectral sensors, and AR/HUD optics that need violet tracking plus
red graphics without mid-visible clutter.
Description
P12607 transmits two bright windows—one in the near-UV/violet (≈ 395 – 455 nm) and one in the deep-red (≈ 655 – 760 nm)—while pushing the entire green–cyan band down to detector noise. Transmission exceeds 88 – 92 % through the violet band, plunges below 1 % from roughly 470 nm to 610 nm, then rockets back above 90 % by ~655 nm and stays 92 – 94 % out past 750 nm. The spectrum is perfect when you need vivid magenta light or want to pair violet excitation with red detection without mid-visible contamination.
Key advantages
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Deep 470–610 nm notch – < 1 % T chops green autofluorescence and ambient glare.
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High dual passbands – > 90 % T in 395–455 nm and 655–760 nm keeps violet sources and red detectors bright.
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Broad blocking floor – Mid-band floor down to ~0.2 % boosts signal-to-noise for sensitive imaging.
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Hard-oxide durability – Ion-assisted coating tolerates heat, humidity, solvents, and repeated cleaning.
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Custom formats – Round, square, or free-form blanks from 5 mm to 450 mm, thickness 0.21 – 3.8 mm, on Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG glass.
Typical applications
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Fluorescence microscopy & cytometry – Pass violet excitation and red emission while silencing green background for cleaner contrast.
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Raman & multispectral sensors – Block 532 nm or 561 nm laser lines yet keep violet and red Stokes/anti-Stokes bands.
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Stage & architectural lighting – Create saturated magenta washes (violet + red) with negligible green spill.
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Machine vision – Combine UV crack detection with red contour lighting, eliminating mid-band reflections.
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AR / HUD optics – Inject violet tracking beams and red graphics while keeping the central visible band dark to the eye.
Need prototypes in days or production volumes next quarter? P12607 filters can be coated, diced, and shipped to your exact specification—fast.
