Optical nonlinearity enhancement of graded metal-dielectric composite films

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We have derived the local electric field inside graded metal-dielectric composite films with weak nonlinearity analytically, which further yields the effective linear dielectric constant and third-order nonlinear susceptibility of the graded structures. As a result, the composition-dependent gradation can produce a broad resonant plasmon band in the optical region, resulting in a large enhancement of the optical nonlinearity and hence a large figure of merit.
11 pages, 2 figures. To be published in Europhysics Letters

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Materials Science, Optics

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http://salesiana.dossiersoluciones.com/handle/123456789/24493

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0407649
 http://arxiv.org/abs/cond-mat/0407649
 Europhys. Lett. 67, 854 (2004)
 doi:10.1209/epl/i2004-10107-8

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