Eliminate Multi-stage Spectral Filter

Name: Eliminate Multi-stage Spectral Filter
Substrate material: Optical Glass
Smoothness: 80-50 MIL-C-48497A
Clear aperture: >90%
Edge chamfer: <0.2mm
Operating temperature: -40°C /+180°C (low stress state)
Storage environment: Constant temperature ~23°C; Constant humidity <40%

Features:

Eliminate multi-level spectrum filter; suitable for optical experiments and monochromators or spectrometers

Multipolar spectrum is a normal diffraction phenomenon, where spectra with common multiple wavelengths come out of the slit of the monochromator at the same time, causing the purity of monochromatic light to decrease.

For example, when the monochromator is at 600nm, the 1st level spectrum of 600nm, the 2nd level spectrum of 300nm and the 3rd level spectrum of 200nm will all come out of the slit, and at this time only the 1st level spectrum of 600nm is what we need. In order to remove the 2nd, 3rd and even multi-level spectra, long-wave pass filters are usually used to filter out short-wavelength radiation.

Regular size: D18mm; D15mm; D25mm, etc.