Talk:Holographic grating

External links modified
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I have just modified one external link on Holographic grating. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added archive https://archive.is/20130130032014/http://gratings.newport.com/information/handbook/chapter4.asp to http://gratings.newport.com/information/handbook/chapter4.asp

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Cheers.— InternetArchiveBot  (Report bug) 01:31, 6 November 2017 (UTC)