785/38nm Band Notch Filter
785nm Band Notch Filters are tailored for bioimaging and spectroscopy using precision thin-film coatings.Coligh customs high precision notch filter for R&D institutions
- High transmission efficiency: Above 93% high transmission for visible range 400-760nm and near infrared 810-1600nm.
- High precision: Deep blocking depth OD>6 at unwanted wavelength at 785nm and minimize interference
- Wide application range: ideal for raman spectroscopy, optiical testing and laser system
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785/38nm Band Notch Filter Description
Coligh 785/38nm Band Notch Filter play critical roles in optical communication and laser systems:
- superior extinction performance: At 785nm, Optical Density (OD) >6 ensures complete suppression of 785nm signals (>99.999% attenuation), eliminating interference and preserving signal integrity for accurate measurement/data transmission.
- ultra-high transmittance windows: Outside the notch band, dual passbands (400-760nm and 810-1600nm) achieve >93% transmission efficiency, minimizing signal loss and maintaining optical system performance while blocking undesired wavelengths.
785/38nm Band Notch Filter Spectrum
785/38nm Band Notch Filter Datasheet
| Optical Filter type: | Optical Notch Filter | Transmission Range | 400-760nm & 810-1600nm |
| Center Wavelength | 785+/-5nm | Transmission Average | >93% |
| Optical Density | OD>6 | Angle Of Incidence | 0 deg |
| FWHM | 38nm | Cone Half-angle | 3 deg |
| Surface quality: | 80/50 60/40 | Coating | Hard Coating |
785/38nm Band Notch Filter Applications
- Raman Spectroscopy: Blocks 785nm excitation lasers to eliminate residual light interference, ensuring clean Raman scattering signals.
- Optical Communication Systems: Suppresses 785nm wavelength bands in telecom networks, reducing noise.
- Fluorescence Microscopy: Attenuates 785nm background light to enhance weak fluorescent signals, achieving higher contrast imaging.
- Laser Systems: Removes unwanted 785nm wavelengths from laser outputs, ensuring spectral purity for precision applications.
- Automated Spectrometers: Enables precise wavelength selection and elimination in analytical instruments, enabling accurate substance identification through controlled spectral ranges.
