Excitation of surface-plasmon polaritons by use of a zeroth-order Bessel beam.
We report an experimental result that shows the excitation of surface plasmon polaritons by use of a zeroth-order Bessel beam. From the viewpoint of energy efficiency, the zeroth order Bessel beam is ideal for the local excitation of surface plasmon polaritons on a metal film. We introduce an optical setup using an axicon element in order to carry out the excitation.
Kano
Hiroshi
H
Muroran Institute of Technology, Mizumoto 27-1, Muroran, Jokkaido 505-8585, Japan. h-kano@elec.muroran-it.ac.jp
Nomura
Dai
D
Shibuya
Haruki
H