| Autor: |
Dreissen, Laura S., Schouten, Hugo F., Ubachs, Wim, Raghunathan, Shreyas B., Visser, Taco D. |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Nano Letters, vol. 18 (11), pp. 7207-7210 (2018) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1021/acs.nanolett.8b03319 |
| Popis: |
We experimentally demonstrate control over the direction of radiation of a beam that passes through a square nano-aperture in a metal film. The ratio of the aperture size and the wavelength is such that only three guided modes, each with different spatial symmetries, can be excited. Using a spatial light modulator, the superposition of the three modes can be altered, thus allowing for a controlled variation of the radiation pattern that emanates from the nano-aperture. Robust and stable steering of 9.5 degree in two orthogonal directions was achieved. |
| Databáze: |
arXiv |
| Externí odkaz: |
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