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In 1987, both Eli Yablonvitch and Sajeev John got together to discuss research that both had previously discovered. Eli Yablonvitch was an electrical engineer at Bell Communications Research in Red Bank, New Jersey. Yablonvitch was known for refining a laser that would become a mainstay of fiber-optic communications. Sajeev John is a Harvard graduate student who worked on a thesis inspired by Philip Anderson of Princeton.
The two agreed that the name of their idea should be called a photonic band gap. Phontonic crystals have the regular lattice structure of natural crystals. Their purpose is to try and trap light without destroying it. The trick is to not kill the photons but to tame them, by allowing light out when you want. Microchips are made of semiconductors and a semiconductor is a band gap. A band gap makes is possible to control the flow of electricity in a chip. In order to make light chips, you need the photonic equivalent of silicon: a material that can trap......

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Approximate Word Count: 521
Approximate Pages: 3 (250 words per double-spaced page)

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