Photonic crystal supporting high frequency sensitivity self-collimation phenomenon and design method and use thereof
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Jun 20, 2017
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Mar 28, 2014
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Nov 27, 2013
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Abstract
A photonic crystal supporting highly frequency-sensitive self-collimation phenomenon, which is formed by at least two kinds of materials, and has a periodic distribution of refractive index, the photonic crystal has straight equi-frequency contours or flat equi-frequency surfaces in a certain band in the first Brillouin zone of wave-vector space, and the frequency-sensitivity of self-collimation is at least 50 times higher than the change rate of curvatures of the equi-frequency contours or the equi-frequency surfaces with frequencies in a vacuum.
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