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Metamaterials with Tailorable Nonlinear Optical Properties

Robert Czaplicki, Hannu Husu, Mariusz Zdanowicz, Kalle Koskinen, Roope Siikanen, Martti Kauranen, Janne Laukkanen, Joonas Lehtolahti, and Markku Kuittinen

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Abstract

Second-order nonlinear processes such as second-harmonic generation (SHG) require noncentrosymmetric structures. The development of second-order metamaterials, however, has been hampered by symmetry breaking due to sample defects and shape distortions. The resulting outcomes can be interpreted in terms of effective higher-multipole (magnetic and quadrupole) effects that strongly modify the radiative properties of the samples.

© 2012 Optical Society of America

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