Anomalous Refractions Based on Photonic Band Modulation of Photonic Crystals

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Abstract:

Due to the existence of photonic bandgap derived from the periodical dielectric structure in wavelength scale, many novel optical phenomena can be demonstrated in photonic crystals (PhCs). Anomalous propagation of electromagnetic waves in X-band is demonstrated experimentally in a two-dimensional triangular lattice PhC. The experimental measurements of electric field are carried out in a near-field scanning system. The phenomena of anomalous refractions are observed and analyzed in respect of anisotropy of equal frequency surfaces in the PhC. The analysis results of numerical simulation are compared with the experimental measurements and good agreements are obtained.

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Advanced Materials Research (Volumes 750-752)

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881-884

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August 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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