Ultrafast surface plasmon polariton pulses observed with a dual-probe scanning near-field optical microscopy (DSNOM) utilizing plasmon nano-focusing

Fumihiko Kannari, Yasuhiro Kojima, Yuta Masaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Dual-probe scanning near-field optical microscopy consisting of ultrafast surface- plasmon polariton nanofocusing for excitation and spectral interferometry for detection is constructed to observe spatiotemporal dynamics of surface-plasmon polariton (SPP) pulses. Nano focusing of SPP excited by femtosecond laser pulses on a gold taper with a tip radius of ~20 nm is deterministically controlled. We achieve spatiotemporal resolution for probing of 100 nm and 10 fs.

Original languageEnglish
Title of host publicationInternational Conference on Ultrafast Phenomena, UP 2016
PublisherOSA - The Optical Society
ISBN (Print)9781943580187
Publication statusPublished - 2016 Jul 18
EventInternational Conference on Ultrafast Phenomena, UP 2016 - Santa Fe, United States
Duration: 2016 Jul 172016 Jul 22


OtherInternational Conference on Ultrafast Phenomena, UP 2016
CountryUnited States
CitySanta Fe


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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