https://replica.wiki.extremist.software/index.php?action=history&feed=atom&title=Diffraction_GratingDiffraction Grating - Revision history2026-04-04T11:47:36ZRevision history for this page on the wikiMediaWiki 1.39.13https://replica.wiki.extremist.software/index.php?title=Diffraction_Grating&diff=10504&oldid=prevBeng: original grating2010-03-30T01:44:21Z<p>original grating</p>
<p><b>New page</b></p><div>==PRISMS WITHOUT THE MAGIC===<br />
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Diffraction gratings are surfaces with regular, very small reflective features, which cause light to be diffracted through interference. <br />
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The most common diffraction grating we see every day is a CD-R, which, because of its regular tracks, splits daylight into its component fractions spatially.<br />
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===TYPES AND QUANTITIES===<br />
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All gratings diffract light in different orders. Zero-order diffraction is the light which is essentially just reflected or transmitted with no change. First-order diffraction is the light which is actually split, and it will in general have include a conjugate first-order, light which is split on the other side of the grating. Gratings are generally built to minimize both zero-order and conjugate-order diffraction, the first because there is no separation, the second because it decreases the light intensity by creating two or more spectra in different directions.<br />
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Transmission or amplitude gratings are gratings which are transparent, hopefully to all spectra. Light separates as it goes through them.<br />
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Diffraction or blazed gratings refer to gratings which are reflective. <br />
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The blaze angle and the number of features/mm are important quantities in order to find the actual ordered diffraction of the specific grating, which will generally need to be optimized for the particular spectra and intensity of light. <br />
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It is not clear how to relate these quantities just yet. Before ordering parts, have ordered optics books to discover.</div>Beng