- 45% to 65% Efficiencies at Peak Wavelength
- Optimized for the VIS Spectrum
- Relatively Independent of Angle of Incidence
- Substrate: Borofloat
This holographic diffraction grating is optimized for high end applications that require a high signal to noise ratio. Holographic gratings feature low stray light, which nearly eliminates all ghosting that ruled gratings suffer from and makes them an ideal solution for applications such as Roman spectroscopy that require high signal to noise ratios.
Optical gratings can be easily damaged by moisture, fingerprints, aerosols, or the slightest contact with any abrasive material. Gratings should only be handled when necessary and always held by the sides. Latex gloves or a similar protective covering should be worn to prevent oil from fingers from reaching the grating surface. No attempt should be made to clean a grating other than blowing off dust with clean, dry air or nitrogen. Solvents will likely damage the gratings’ surface. Scratches or other minor cosmetic imperfections on the surface of a grating do not usually affect performance and are not considered defects.
- Grooves (lines/mm): 1200
- Dispersion (mrad/nm): 1.27 @ 500 nm
- Size: 12.7 x 12.7 mm