Optimization of a nanotip on a surface for the ultrafast probing of propagating surface plasmons
SCIE
SCOPUS
- Title
- Optimization of a nanotip on a surface for the ultrafast probing of propagating surface plasmons
- Authors
- Ahn, B; Schotz, J; Okell, WA; Suessmann, F; Foerg, B; Kim, SC; Kling, MF; Kim, D
- Date Issued
- 2016-01-11
- Publisher
- OPTICAL SOC AMER
- 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
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/36138
- DOI
- 10.1364/OE.24.000092
- ISSN
- 1094-4087
- Article Type
- Article
- Citation
- OPTICS EXPRESS, vol. 24, no. 1, page. 92 - 101, 2016-01-11
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- There are no files associated with this item.
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