| Ahn, B.; Schötz, J.; Okell, W. A.; Süßmann, F.; Förg, B.; Kim, S. C.; Kling, M. F.; Kim, D. (2016): Optimization of a nanotip on a surface for the ultrafast probing of propagating surface plasmons. In: Optics Express, Vol. 24, No. 1: pp. 92-101 |
Full text not available from 'Open Access LMU'.
DOI: 10.1364/OE.24.000092
Abstract
We theoretically analyze a method for characterizing propagating surface plasmon polaritons (SPPs) on a thin gold film. The SPPs are excited by few-cycle near-infrared pulses using Kretschmann coupling, and a nanotip is used as a local field sensor. This geometry removes the influence of the incident excitation laser from the near fields, and enhances the plasmon electric field strength. Using finite-difference-time-domain studies we show that the geometry can be used to measure SPP waveforms as a function of propagation distance. The effects of the nanotip shape and material on the field enhancement and plasmonic response are discussed. (C) 2016 Optical Society of America
| Item Type: | Journal article |
|---|---|
| Faculties: | Physics |
| Subjects: | 500 Science > 530 Physics |
| ISSN: | 1094-4087 |
| Language: | English |
| ID Code: | 47887 |
| Deposited On: | 27. Apr 2018 08:14 |
| Last Modified: | 04. Nov 2020 13:25 |
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