17 September 2016 Second-order nonlinearities of 2D periodic arrays of Au nanorods at surface plasmon resonances
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Abstract
We present second-order nonlinear optical properties of two-dimensional periodic arrays of Au nanorods arranged two dimensionally on SiO2 along with the one-dimensional periodic arrays in the direction either coaxial or vertical to the plasmon polarizations. The geometry of the nanorods was symmetric with respect to the normal line to the top surface of the rods, and the system was excited at oblique incidence angles so as to break the centro-symmetry. Our experimental results demonstrated that the coordination longitudinal to plasmon polarizations reduced the nonlinearities of the nanorods while the coordination transverse to polarizations did not give any significant influences on them.
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A. Sugita, A. Sugita, S. Nihashi, S. Nihashi, A. Ono, A. Ono, Y. Kawata, Y. Kawata, } "Second-order nonlinearities of 2D periodic arrays of Au nanorods at surface plasmon resonances", Proc. SPIE 9921, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIV, 99211H (17 September 2016); doi: 10.1117/12.2237252; https://doi.org/10.1117/12.2237252
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