Gap Nanoantennas toward Molecular Plasmonic Devices

Figure 1

Fabrication steps of nanoantenna arrays using e-beam lithography and metal depositions. SEM images of selected nanoantenna arrays, used in the reported studies, are presented in (a) for dimers, and in (b) and (c) for nanorods with different lengths and therefore different ARs. The arrows in (c) define the used excitation polarizations, with p-polarization along the long axis of the nanostructures and s perpendicular to the long axis.