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A Novel Approach to Negative Refraction

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CAMBRIDGE, Mass., Aug. 2, 2012 — An “extraordinarily strong” negative refractive index as large as -700 — more than 100 times larger than most previously reported — was achieved in metamaterials using a new technique developed by scientists at the Harvard School of Engineering and Applied Sciences (SEAS) in collaboration with Weizmann Institute of Science in Israel. In a vacuum, light travels so fast that it can circle the Earth more than seven times within the blink of an eye. When light propagates through matter, however, it slows by a factor typically less than 5. This factor, called the...Read full article

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