Concave diffraction gratings combine dispersion and imaging properties onto a single optical component for integration into spectroscopic systems. These concave gratings are produced holographically, optimizing the focal plane and minimizing aberrations across the grating wavelength range. concave diffraction gratings are designed to increase grating efficiency and minimize stray light, thereby increasing spectral resolution and the signal-to-noise ratio of the spectrometer.

Warning

The grating can be easily damaged by moisture, fingerprints, aerosols, or slight contact with any friction material. The grating can only be taken when necessary and can only be clamped through the edges. Rubber gloves or similar protective covers should be worn to prevent grease on the fingers from touching the grating surface. Clean the grating only with purified dry air or nitrogen. No other operation is allowed. The solvent is likely to damage the grating surface.