Mapping surface plasmon polariton propagation via counter-propagating light pulses

Christoph Lemke, Till Leißner, Stephan Jauernik, Alwin Klick, Jacek Fiutowski, Jakob Kjelstrup-Hansen, Horst-Günter Rubahn, Michael Bauer

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In an interferometric time-resolved photoemission electron microscopy (ITR-PEEM) experiment, the near-field associated with surface plasmon polaritons (SPP) can be locally sensed via interference with ultrashort laser pulses. Here, we present ITR-PEEM data of SPP propagation at a gold vacuum interface recorded in a counter-propagating pump-probe geometry. In comparison to former work this approach provides a very intuitive real-time access to the SPP wave packet. The quantitative analysis of the PEEM data enables us to determine in a rather direct manner the propagation characteristics of the SPP
Original languageEnglish
JournalOptics Express
Volume20
Issue number12
Pages (from-to)12877-12884
ISSN1094-4087
DOIs
Publication statusPublished - 2012

Keywords

  • Surface plasmons
  • Femtosecond phenomena
  • Surface photoemission and photoelectron spectroscopy

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