Narrow bandwidth, high blocking performance, high transmittance
This notch filter is a hard-coated filter with high blocking performance and a narrow bandwidth. It blocks only the narrow wavelength range before and after a specific wavelength, while allowing other wavelength ranges to pass through, enabling spectral separation. In Raman spectroscopy, it is possible to simultaneously detect Stokes Raman scattered light (longer wavelength than the laser) and anti-Stokes Raman scattered light (shorter wavelength than the laser).
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basic information
■ Narrow bandwidth ■ High transmittance (>90% (typical)) ■ High blocking performance (OD value >6 (typical)) ■ Long lifespan, high durability ■ Transmitted wavelength 0.8 × CWL to 1.33 × CWL (typical) (excluding 442nm) ■ Incident angle 0° ■ Effective aperture 8 mm (Φ12.5 mm filter), 21 mm (Φ25 mm filter)
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Applications/Examples of results
■ Raman spectroscopy ■ Laser excitation ■ Fluorescence measurement ■ Biophotonics ■ Microscope
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| Model number | overview |
|---|---|
| 442-11 NF-12.5 | Laser wavelength nm, nm (at 50% bandwidth), Φ12.5nm size |
| 442-11 NF-25.0 | Laser wavelength 442nm, 11nm (at 50% bandwidth), Φ25nm size |
| 457-12 NF-12.5 | Laser wavelength 457nm, 12nm (at 50% bandwidth), Φ12.5nm size |
| 457-12 NF-25.0 | Laser wavelength 457nm, 12nm (at 50% bandwidth), Φ25nm size |
| 476-13 NF-12.5 | Laser wavelength 476nm, 13nm (at 50% bandwidth), Φ12.5nm size |
| 476-13 NF-25.0 | Laser wavelength 476nm, 13nm (at 50% bandwidth), Φ25nm size |
| 488-14 NF-12.5 | Laser wavelength 488nm, 14nm (at 50% bandwidth), Φ12.5nm size |
| 488-14 NF-25.0 | Laser wavelength 488nm, 14nm (at 50% bandwidth), Φ25nm size |
| 514.5-16 NF-12.5 | Laser wavelength 514.5nm, 16nm (at 50% bandwidth), Φ12.5nm size |
| 514.5-16 NF-25.0 | Laser wavelength 514.5nm, 16nm (at 50% bandwidth), Φ25nm size |
| 532-17 NF-12.5 | Laser wavelength 532nm, 17nm (at 50% bandwidth), Φ12.5nm size |
| 532-17 NF-25.0 | Laser wavelength 532nm, 17nm (at 50% bandwidth), Φ25nm size |
| 632.8-25 NF-12.5 | Laser wavelength 632.8nm, 25nm (at 50% bandwidth), Φ12.5nm size |
| 632.8-25 NF-25.0 | Laser wavelength 632.8nm, 25nm (at 50% bandwidth), Φ25nm size |
| 650-26 NF-12.5 | Laser wavelength 650nm, 26nm (at 50% bandwidth), Φ12.5nm size |
| 650-26 NF-25.0 | Laser wavelength 650nm, 26nm (at 50% bandwidth), Φ25nm size |
| 752-36 NF-12.5 | Laser wavelength 752nm, 36nm (at 50% bandwidth), Φ12.5nm size |
| 752-36 NF-25.0 | Laser wavelength 752nm, 36nm (at 50% bandwidth), Φ25nm size |
| 785-39 NF-12.5 | Laser wavelength 785nm, 39nm (at 50% bandwidth), Φ12.5nm size |
| 785-39 NF-25.0 | Laser wavelength 785nm, 39nm (at 50% bandwidth), Φ25nm size |
| 830-44 NF-12.5 | Laser wavelength 830nm, 44nm (at 50% bandwidth), Φ12.5nm size |
| 830-44 NF-25.0 | Laser wavelength 830nm, 44nm (at 50% bandwidth), Φ25nm size |
| 1064-71 NF-12.5 | Laser wavelength 1064nm, 71nm (at 50% bandwidth), Φ12.5nm size |
| 1064-71 NF-25.0 | Laser wavelength 1064nm, 71nm (at 50% bandwidth), Φ25nm size |
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We are a group of experts specializing in spectroscopy, focusing on cutting-edge equipment such as light sources, spectrometers, detectors, our unique laser measurement systems, analytical devices, and femtosecond laser processing.