KEYWORDS: Diffraction gratings, Sensors, Interferometers, Diffraction, Photography, Atomic force microscopy, Physics, Signal detection, Mechanics, Control systems
A novel method called phase scanning is suggested in this paper, with which varied line-space diffraction grating can be fabricated on a classically photoelectric ruling engine. An experimentally blazed varied line-space plane grating with a central groove density of 1200 g/mm was fabricated. The space increment varies from -0.332nm to +0.332nm. A test to examine the scanning phase method was also made on it.
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