Optical control of plasmonic fields by phasemodulated pulse excitations

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We developed an advanced near-field optical method by combining an ultrafast near-field optical microscope with a prism-based pulse shaping system. We used this apparatus to visualize plasmonic optical fields and to measure the lifetime of plasmons excited on a rough gold film. We also studied the influence of the phase-modulation of the excitation pulse on the spatial distribution of the optical fields. We found that the spatial distribution of the optical fields can be controlled by a negatively chirped pulse.

Original languageEnglish
Pages (from-to)27481-27489
Number of pages9
JournalOptics Express
Volume21
Issue number22
DOIs
Publication statusPublished - 2013 Nov 4

Fingerprint

optical control
near fields
spatial distribution
pulses
excitation
optical microscopes
plasmons
phase modulation
prisms
optics
gold
life (durability)

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Optical control of plasmonic fields by phasemodulated pulse excitations. / Imaeda, Keisuke; Imura, Kohei.

In: Optics Express, Vol. 21, No. 22, 04.11.2013, p. 27481-27489.

Research output: Contribution to journalArticle

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