Selective excitation of multipolar spoof plasmons using orbital angular momentum of light

  title={Selective excitation of multipolar spoof plasmons using orbital angular momentum of light},
  author={Takashi Arikawa and Tomoki Hiraoka and Shohei Morimoto and François Blanchard and Shuntaro Tani and Tomoko Tanaka and Kyosuke Sakai and H. Kitajima and Keiji Sasaki and Koichiro Tanaka},
  journal={arXiv: Optics},
The nature of light-matter interaction is governed by the spatial-temporal structures of a light field and material wavefunctions. The emergence of the light beam with transverse phase vortex, or equivalently orbital angular momentum (OAM) has been providing intriguing possibilities to induce unconventional optical transitions beyond the framework of the electric dipole interaction. The uniqueness stems from the OAM transfer from light to material, as demonstrated using the bound electron of a… 

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