28 March 1989 Gratings In Nonlinear Optics And Enhanced Nonlinear Optical Effects
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Proceedings Volume 1029, Scattering and Diffraction; (1989) https://doi.org/10.1117/12.950394
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany
This paper presents the last developments of Surface Enhanced Second Harmonic Generation by gratings, linked with electromagnetic resonances like Delocalized Surface Plasmons or Guided Waves which occur at the pump frequency. Two rigorous electromagnetic theories have been developed to deal with metallic or dielectric nonlinear materials, and implemented numerically. They allow calculating and optimizing the enhancement of the Second Harmonic Signal, compared to the flat interface. It is shown that not only the groove depth plays a key role in the enhancement process, but also the groove spacing and groove shape. Moreover, the nature of the electromagnetic resonance (Surface Plasmon or Guided Waves) may influence the enhancement by an order of magnitude. The study of the enhancement of the linear local field may give interesting predictions for other nonlinear effects like Surface Enhanced Raman Scattering or Kerr effect and Optical Bistability, but does not seem to give very useful predictions for second harmonic generation.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Neviere, M. Neviere, R. Reinisch, R. Reinisch, H. Akhouayri, H. Akhouayri, J. L. Coutaz, J. L. Coutaz, D. Maystre, D. Maystre, } "Gratings In Nonlinear Optics And Enhanced Nonlinear Optical Effects", Proc. SPIE 1029, Scattering and Diffraction, (28 March 1989); doi: 10.1117/12.950394; https://doi.org/10.1117/12.950394

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