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Metallic slit arrays filled with third-order nonlinear media: Optical Kerr effect and third-harmonic generation

AuthorsRodrigo, Sergio G.; Carretero-Palacios, S.; García-Vidal, F. J.; Martín-Moreno, Luis
Issue DateJun-2011
PublisherAmerican Physical Society
CitationPhysical Review B 83(14): 144426 (2011)
AbstractA theoretical study on the nonlinear optical properties of both gold and nickel slit arrays inlaid with a third-order nonlinear dielectric medium is presented. In particular, we investigate the optical Kerr effect and third harmonic generation. The geometrical parameters, along with the optical properties of each metal, determine the electromagnetic environment near the slits and, in turn, the nonlinear optical response. The optical Kerr effect is only seen for slit arrays in gold, where the transmitted and reflected currents are modified with the incident intensity, while nickel slit arrays behave linearly within the same range of input intensities. However, third harmonic emission occurs for both systems, unveiling third-order nonlinearities taking place also in nickel structures.
Description7 páginas, 6 figuras.-- PACS number(s): 78.67.−n, 42.65.−k, 78.20.Bh
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.83.235425
Appears in Collections:(ICMA) Artículos
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