M11114 Broadband Notch Filter
Double-pass notch filter passing vivid violet (395 – 455 nm) and bright red (590 – 730 nm) while plunging green-cyan light below 1 % for a clean magenta spectrum.
- Violet passband: > 90 % T @ 395 – 455 nm
- Deep notch: < 1 % T @ 480 – 565 nm
valley ≈ 0.2 % T - Red passband: 590 – 730 nm, 92 – 95 % T
- IR roll-off: Gentle decline beyond ~730 nm limits stray IR
- 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
M11114 delivers two bright windows—one in the near-UV/violet
(≈ 395 – 455 nm) and one in the deep red (≈ 590 – 730 nm)—while forcing the
green-cyan region down to detector noise. Transmission tops 88 – 93 % in violet,
drops below 1 % from ~480 nm to 565 nm, then rockets past 90 % again near
590 nm and rides 92 – 95 % out to ~730 nm before a controlled roll-off that
reins in excess NIR.
KUPO coats Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG substrates in any outline—from
5 mm chips to 450 mm plates—with thicknesses of 0.21 – 3.8 mm, and can ship
prototypes in about two weeks.
Typical uses: violet-excite/red-detect fluorescence, magenta stage lighting,
UV + red machine-vision illumination, green-band suppression in Raman or multispectral
sensors, and AR/HUD optics that need violet tracking plus red graphics without mid-visible clutter.
Description
M11114 sends two bright bands through—one in the near-UV/violet and one in the deep red—while driving the entire green-cyan region down to detector noise. Transmission tops 88 – 93 % from about 395 nm to 455 nm, collapses to below 1 % across roughly 480 nm – 565 nm, then rockets past 90 % again near 590 nm. It rides a 92 – 95 % plateau out to ~730 nm before a gentle taper toward the near-IR. The result is vivid magenta throughput with mid-visible clutter cleanly suppressed.
Key advantages
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Deep 480 – 565 nm notch – < 1 % T removes green autofluorescence and ambient spill.
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High dual passbands – > 90 % T in 395 – 455 nm and 590 – 730 nm keeps violet excitation and red detection bright.
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Controlled red roll-off – Gentle decline above ~730 nm limits stray IR while retaining deep-red signal.
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Hard-oxide durability – Ion-assisted coating resists heat, humidity, solvents, and repeated cleaning.
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Flexible formats – Round, square, or custom 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 sharper images.
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Raman & multispectral sensors – Block 532 nm / 561 nm laser lines yet keep violet and red Stokes or anti-Stokes bands.
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Stage & architectural lighting – Produce saturated magenta washes (violet + red) with negligible green spill.
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Machine-vision systems – Pair 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 within days or production volumes next quarter? M11114 filters can be coated, diced, and shipped to your exact specifications—fast.
