Abstract
Plasmonic wave packet propagation is monitored in dielectric-loaded surface plasmon polariton waveguides realized from para-hexaphenylene nanofibers deposited onto a 60 nm thick gold film. Using interferometric time resolved two-photon photoemission electron microscopy we are able to determine phase and group velocity of the surface plasmon polariton (SPP) waveguiding mode (0.967c and 0.85c at λLaser = 812nm) as well as the effective propagation length (39 μm) along the fiber-gold interface. We furthermore observe that the propagation properties of the SPP waveguiding mode are governed by the cross section of the waveguide.
Original language | English |
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Journal | Optics Express |
Volume | 21 |
Issue number | 7 |
Pages (from-to) | 8251-8260 |
Number of pages | 10 |
ISSN | 1094-4087 |
DOIs | |
Publication status | Published - 28. Mar 2013 |
Keywords
- Surface Plasmon
- Plasmonics
- Femtosecond phenomena
- Ultrafast devices
- organic materials
- Surface photoemission and photoelectron spectroscopy