Holographic notch filters (HNF) are state-of-the-art volume holograms that provide high laser attenuation in a very narrow bandwidth. They are ideal for laser spectroscopy. In Raman applications it is possible to collect both Stokes and Anti-Stokes data with tens of wavenumbers of the laser line.
Holographic Notch and Narrow Notch Filters |
The notch filter, in contrast to a narrow band filter, intercepts light in a particular wavelength range by transmitting light at most wavelengths. Notch filters are useful in applications where it is necessary to filter out the laser light. For example, in drug bioassays, in ...
Come From Hyperion Optics
The notch filter, in contrast to a narrow band filter, intercepts light in a particular wavelength range by transmitting light at most wavelengths. Notch filters are useful in applications where it is necessary to filter out the laser light. For example, in drug bioassays, in ...
Come From Hyperion Optics
Narrow bandpass filter allow small light through, the narrower ,the more pure of the light.Sunday is producing standars narrow bandpass filter. The film of narrowband filter is generally composed of two kinds of films with low refractive index and high refractive index. After ...
Come From Changchun Sunday Optics Co.,ltd