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Optical nonlinearity enhancement of graded metal-dielectric composite films

J. P. Huang·L. Dong·K. W. Yu
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Abstract

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.

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J. P. Huang, L. Dong, K. W. Yu. 2004-07-25. Optical nonlinearity enhancement of graded metal-dielectric composite films. https://doi.org/10.1209/epl%2Fi2004-10107-8

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