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Frequently Asked Questions

A diffraction grating is an optical surface that has grooves deposited in a certain way to divide incident light waves into coherent beams and change their amplitude and phase.

Ruled diffraction gratings are made by cutting parallel grooves at equal distances using special machines with diamond cutters.

Holographic diffraction gratings are manufactured using a new technology that forms an interference pattern of laser radiation in photoresist. They offer high resolution and low light scattering.

Holographic diffraction gratings can be deposited on a plane surface (plane grating) or a concave spherical surface (concave grating) with a focusing effect.

The period of a diffraction grating refers to the strictly equal intervals between the repeated grooves on the grating.

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