423nm Narrowband Filter | 15nm FWHM | T<1% Blocking
This narrow band optical filter is precision-engineered to isolate the 423nm wavelength. It offers exceptionally high transmission, greater than 90 percent, in the passband (420-426nm) with a tight 15nm FWHM. It provides excellent noise rejection, blocking greater than 99 percent of light (less than 1 percent transmission) across the wide 350-1100nm spectrum.
Technical Specifications
| Part Number (SKU) | 20216318 |
| Center Wavelength (CWL) | 423 ±3 nm (at T > 90%) |
| Full Width at Half Maximum (FWHM) | 15 ±2 nm |
| Transmission Band (T_avg) | 420-426 nm at T_avg > 90% |
| Blocking Band | 350-1100 nm at T_avg < 1% (OD > 2) |
| Thickness | 2.0 mm |
| Surface Quality | 60/40 (MIL-PRF-13830B) |
Typical Applications
The precise 15nm bandwidth and 423nm CWL make this filter ideal for systems requiring specific violet wavelength isolation. It is highly effective in fluorescence microscopy filters sets, particularly for exciting specific fluorophores used in cellular imaging (e.g., calcium flux studies) and flow cytometry.
It is also a critical component for spectral analysis in spectroscopy and for cleaning up the signal from 423nm laser diode sources.
Customization and In-Stock Solutions
OPTOStokes supports your project from R&D prototyping to volume production. We maintain an inventory of standard filters, like P/N 20216318, for immediate shipment, minimizing your development downtime.
We also provide comprehensive custom optical filters services. Our engineering team can produce this filter in custom shapes (round, square, or complex geometries), sizes, or mounted in custom assemblies to meet your exact mechanical requirements. All components feature our world-class optical coating technology, ensuring precision, guaranteed quality, and reliable lead times for your production schedule.
Partner with OPTOStokes
Avoid project delays from inconsistent suppliers or long lead times. Our manufacturing ensures high-quality, reliable components for both standard and custom specifications.
To discuss your technical requirements, request a custom modification, or confirm stock for P/N 20216318, please contact our engineering team directly.
Email us at sales@optofilters.com for a rapid technical consultation or quote.
