| Autor: |
Deirdre Kilbane, Eva Prinz, Tobias Eul, Michael Hartelt, Anna-Katharina Mahro, Matthias Hensen, Walter Pfeiffer, Martin Aeschlimann |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Popis: |
We design and experimentally demonstrate an optical switch based on the interference of plasmonic modes in whispering gallery mode (WGM) antennas. Simultaneous excitation of even and odd WGM modes, enabled by a small symmetry breaking via non-normal illumination, allows switching the plasmonic near field between opposite sides of the antenna, depending on the excitation wavelength used in a wavelength range of 60 nm centered around 790 nm. This proposed switching mechanism is experimentally demonstrated by combining photoemission electron microscopy (PEEM) with a tunable wavelength femtosecond laser source in the visible and infrared. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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