Skip to content 
760nm IR Pass Filter FWHM 8nm
760nm IR Pass Filter FWHM 8nm is an optical narrow bandpass filter to transmit centered around 760nm and FWHM 8nm. Coligh manufactures EUV to 30000nm bandpass filter.
- Center wavelength 760nm
- FWHM 8nm
- Transmission peak ≥75%
- Blocking depth OD5
Products Categories
Get A Free Quote
760nm Optical Narrow Band IR Pass Filter FWHM 8nm Description
760nm IR Pass Filter (FWHM 8nm) is a high-performance optical filter based on multilayer dielectric film interference technology, designed for precise selection of near-infrared light signals near 760nm.
- The central wavelength is strictly controlled at 760+/-2nm to meet the wavelength matching requirements of precision optical systems.
- The half-bandwidth is 8+/-2nm, which can accurately extract 760nm target signals, such as oxygen absorption lines and fluorescent marker emission peaks, to avoid crosstalk between adjacent bands.
- It is transparent within the range of 760nm+/-4nm, with a transmittance greater than or equal to 75%, maximizing the retention of effective light signal intensity, suitable for weak light detection scenarios
- The cut-off depth OD5 in the non-target band range of 200-1100nm has excellent stray light cut-off performance
760nm IR Pass Filter FWHM 8nm Technical Datasheet
| Parameter | Specification |
| Center Wavelength | 760nm ± 2 nm |
| FWHM | 8 nm ± 2 nm |
| Peak Transmission | ≥ 75% |
| Blocking Range | 200–1100 nm |
| Blocking Depth | OD5 |
| Substrate Material | UV Fused Silica， K9, B270 |
| Surface Quality | 80-50, 60-40,40-20 (MIL-PRF-13830B) |
| Clear Aperture | ≥ 90% of the filter diameter |
| Filter Dimensions | φ12mm，φ15mm，φ25.4mm or custom |
| Angle of Incidence | 0° +/-5° |
| Coating Type | Hard-coated |
| Durability | MIL-STD-810E compliant， Method507.3 |
| Other similar FWHM availiable | 282/8nm, 340/8nm, 405/8nm, 450/8nm, 480/8nm, 492/8nm, 505/8nm, 510/8nm, 546/8nm, 578/8nm, 620/8nm, 630/8nm, 670/8nm, 700/10nm, 750/10nm, 760/10nm |
760nm IR Pass Filter FWHM 8nm Applications
- Oxygen concentration detection sensor
Oxygen has a characteristic absorption peak near 760nm, and traditional wide-spectrum sensors are susceptible to cross-interference from other gases such as water vapor and carbon dioxide. The 760/8nm narrowband filter can accurately lock the oxygen absorption line, eliminate environmental interference, and improve detection sensitivity - Near-infrared imaging
760nm is in the near-infrared window, and the tissue penetration depth is better than visible light, but the autofluorescence of biological tissues will reduce the imaging contrast. The 760/8nm optical filter can suppress excitation light and background fluorescence, and only transmit the 760nm emission signal of the probe. - Scientific research experiments
In time-resolved spectroscopy, specific wavelength signals need to be accurately separated in ultrafast laser experiments, but wide-spectrum noise will mask transient optical phenomena. The 760/8nm filter can provide pure monochromatic light input to ensure that both time resolution and spectral resolution meet the standards.
