Sub-20-fs time-resolved measurements in an apertured near-field optical microscope combined with a pulse-shaping technique

Hui Jun Wu*, Yoshio Nishiyama, Tetsuya Narushima, Kohei Imura, Hiromi Okamoto

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

We have constructed an ultrafast near-field optical microscope system with near-field pump/probe pulses with a 17 fs duration at the probe tip. The dispersion effects arising from the optical components, especially from the optical fiber, were removed by a pulse-shaping system that consists of passive and adaptive group-velocity dispersion compensators. With this apparatus, we succeeded in measuring dephasing in a single gold nanostructure with a time constant on the order of 10 fs.

Original languageEnglish
Article number062002
JournalApplied Physics Express
Volume5
Issue number6
DOIs
Publication statusPublished - 2012 Jun

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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