التفاصيل البيبلوغرافية
| العنوان: |
Electron energy-loss spectroscopy on freestanding perforated gold films |
| المؤلفون: |
Thomas Kiel, Kurt Busch, Stefan Linden, Stephan Irsen, M. Prämassing |
| المصدر: |
Physical Review B |
| بيانات النشر: |
arXiv, 2021. |
| سنة النشر: |
2021 |
| مصطلحات موضوعية: |
Condensed Matter - Materials Science, Materials science, Electron energy loss spectroscopy, Surface plasmon, Physics::Optics, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Focused ion beam, Molecular physics, Surface plasmon polariton, Carbon film, 0103 physical sciences, 010306 general physics, 0210 nano-technology, Plasma ashing, Plasmon, Excitation, Physics - Optics, Optics (physics.optics) |
| الوصف: |
We report on a combined far- and near-field study of surface plasmon polaritons on freestanding perforated gold films. The samples are fabricated by focused ion beam milling of {a periodic hole array into} a carbon membrane followed by thermal evaporation of gold and plasma ashing of the carbon film. Optical transmission spectra show a series of characteristic features, which can be attributed to the excitation of surface plasmon modes via the periodic nanohole array. The corresponding near-field distributions are mapped by electron energy-loss spectroscopy. Besides the optically bright surface plasmon modes, we observe in the near-field an additional dark plasmon mode, which is absent in the normal incidence far-field spectra. Our experimental results are in good agreement with numerical computations based on a discontinuous Galerkin time-domain method. |
| وصف الملف: |
application/pdf |
| DOI: |
10.48550/arxiv.2101.02105 |
| URL الوصول: |
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07c6f95329b1cc7022e4a2186bc2d412 |
| Rights: |
OPEN |
| رقم الانضمام: |
edsair.doi.dedup.....07c6f95329b1cc7022e4a2186bc2d412 |
| قاعدة البيانات: |
OpenAIRE |