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By Paras N. Prasad, David J. Williams. Photonics, which uses photons for information and image processing, has been labeled the technology of the 21st century, and nonlinear optical processes provide its key functions of frequency conversion and optical switching.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.