Surface Enhanced Second Harmonic Generation In Dielectric Deposited Over A Silver Grating

M. Neviere; H. Akhouayri; P. Vincent; P. Vincent; R. Reinisch

doi:10.1117/12.941746

9 February 1987 Surface Enhanced Second Harmonic Generation In Dielectric Deposited Over A Silver Grating

M. Neviere, H. Akhouayri, P. Vincent, P. Vincent, R. Reinisch

Proceedings Volume 0815, Application and Theory of Periodic Structures, Diffraction Gratings, and Moire Phenomena III; (1987) https://doi.org/10.1117/12.941746
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

We study the enhancement of second harmonic generation by nonlinear dielectrics deposited onto a rough metallic surface represented by a grating. If the dielectric is thick enough to support a guided mode, an increase of the local field occurs when that guided mode is resonantly excited. The result is an enhancement of the nonlinear polarisation and thus of the second harmonic signal. We try to optimize the enhancement by determining the optimum grating parameters. To this end, a new theory of gratings in nonlinear optics is developped and implemented numerically. Enhancements higher than 10⁵ are found for a convenient sinu-soidal grating. The influence of the groove shape is considered.

Citation Download Citation

M. Neviere, H. Akhouayri, P. Vincent, P. Vincent, and R. Reinisch "Surface Enhanced Second Harmonic Generation In Dielectric Deposited Over A Silver Grating", Proc. SPIE 0815, Application and Theory of Periodic Structures, Diffraction Gratings, and Moire Phenomena III, (9 February 1987); https://doi.org/10.1117/12.941746

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