Control of grating-coupled ultrafast surface plasmon pulse and its nonlinear emission by shaping femtosecond laser pulse

Kazunori Toma, Yuta Masaki, Miyuki Kusaba, Kenichi Hirosawa, Fumihiko Kannari

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Spatiotemporal nanofocusing of ultrafast surface plasmon polaritons (SPPs) coupled on a metal Au tapered tip with a curvature radius of a few tens of nanometers is deterministically controlled based on the measured plasmon response function. We control the SPP pulse shape and the second harmonic generation at the apex of the Au tapered tip by shaping the excitation femtosecond laser pulses based on the response function. We also adapted a similar control scheme for coherent anti-Stokes Raman scattering (CARS) and achieved selective CARS excitation of a single Raman mode of carbon nanotubes with only a single excitation laser pulse at the apex of the tip.

本文言語English
論文番号103102
ジャーナルJournal of Applied Physics
118
10
DOI
出版ステータスPublished - 2015 9月 14

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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