“Making a simple grating pattern is easy. Just scribe a line on a mirror with a razor blade. Then scribe another line, parallel as close as possible, to the first line. Permit light to pass through and you’ll have created two fringes of diffracted light waves. Because of scientific demands, you’ll have to scribe thousands of perfectly parallel lines to the inch.”
The Edmund Difraction Grating Idea Book
We covered our kaliedoscopic motors with difraction gratings to amplify the irradiation power.
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