Coherent and incoherent second harmonic generation in planar G-shaped nanostructures |
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| Authors: | Mamonov E A Murzina T V Kolmychek I A Maydykovsky A I Valev V K Silhanek A V Ponizovskaya E Bratkovsky A Verbiest T Moshchalkov V V Aktsipetrov O A |
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| Institution: | Department of Physics, M.V. Lomonosov Moscow State University, Moscow, Russia. mamonov@shg.ru |
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| Abstract: | Azimuthal anisotropy of Stokes parameters of the second harmonic generation (SHG) generated and observed in reflection from a periodic planar area of G-shaped gold nanostructures is studied. A strong anisotropy of both coherent and incoherent SHG components is observed. Finite-difference time-domain calculations prove that the observed effects are due to the anisotropic enhancement of the fundamental radiation within the G-shaped structures. |
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