what is holographic diffraction
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Holographic diffraction gratings are optically generated by recording an interference pattern on a photoresist coated substrate. They provide excellent wavefront flatness and high efficiency for a single polarization plane. Compared with ruled gratings, holographic gratings do not display periodic errors or ghosts.
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Holographic diffraction gratings are optically generated by recording an interference pattern on a photoresist coated substrate. They provide excellent wavefront flatness and high efficiency for a single polarization plane. Compared with ruled gratings, holographic gratings do not display periodic errors or ghosts.
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