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We investigate local excitation of surface plasmon polaritons (SPPs) at a 55-nm-thick gold layer covered with randomly located scatterers (density ~75 μm -2 ) by using an uncoated fiber tip of a near-field optical microscope as a radiation source and detecting the radiation scattered in the direction of resonant (at flat regions) SPP excitation. In the wavelength range of 725-773 nm,...
Using near-field optical microscopy, we directly map the propagation of light in the wavelength range of 1510-1560 nm along bent photonic crystal waveguides formed by removing a single row of holes in the triangular 400-nm-period lattice and connected to access ridge waveguides, the structure being fabricated on silicon-on-insulator wafers. Based on the near-field optical images measured, we determine...
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