Figure 5
From: Maximizing energy coupling to complex plasmonic devices by injecting light into eigenchannels
Eigenchannels of triple slits fabricated on a thin Au film. (a) Sample image measured from focused ion beam scanning. Scale bar: 5 μm. (b) Phase profiles of the first input eigenchannel measured by the experiment (red circular dots) and calculated using the FDTD method (solid blue curve). (c) The same as (b) but for the third eigenchannel. The shaded areas in gray indicate the location of the slits.
