253692.fig.0010a
(a)
253692.fig.0010b
(b)
253692.fig.0010c
(c)
Figure 10: 2D normalized intensity distribution of Bessel surface multiplasmon polariton in the air at the distance μm (a), μm (b), and μm (c) from the interface of 50 nm thickness gold film of “SF10 glass—Au layer—air” structure. Bessel surface multiplasmon polariton is a superposition of and low-index BSPPs with wavelength μm.