Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9868005 | Physics Letters A | 2005 | 7 Pages |
Abstract
We investigate theoretically the effective second-harmonic generation (SHG) susceptibility in graded films of metal-dielectric random composites with anisotropically shaped particles by invoking the local field effects. Using numerical examples, we demonstrate that in the presence of gradation profiles and/or shape effects, graded metal-dielectric films could be used as novel optical materials for producing a broad structure in both the linear and nonlinear (SHG) response and with an enhancement in the nonlinear response.
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Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
J.P. Huang, P.M. Hui, K.W. Yu,