Valley-selective directional emission enabled by a plasmonic nanoantenna
| Autor: | Thomas Pertsch, Andrey Turchanin, Khosro Zangeneh Kamali, Emad Najafidehaghani, Antony George, Mostafa Abasifard, Mohsen Rahmani, Jingshi Yan, Haitao Chen, Isabelle Staude, Dragomir N. Neshev, Tobias Bucher |
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| Rok vydání: | 2021 |
| Předmět: |
Coupling
Materials science business.industry Astrophysics::High Energy Astrophysical Phenomena Physics::Optics chemistry.chemical_element Astrophysics::Cosmology and Extragalactic Astrophysics Cryogenics Tungsten Polarization (waves) chemistry.chemical_compound chemistry Monolayer Optoelectronics Tungsten diselenide Spontaneous emission business Astrophysics::Galaxy Astrophysics Plasmon |
| Zdroj: | 2021 Photonics North (PN). |
| DOI: | 10.1109/pn52152.2021.9597992 |
| Popis: | We experimentally investigate the coupling of spontaneous emission from monolayer tungsten diselenide to resonant plasmonic nanoantennas at cryogenic temperatures. The low temperature conditions enable preserved chiral polarization states of the spontaneous emission with a valley-selective handedness. By back-focal plane imaging of the scattered spontaneous emission we demonstrate a valley-selective directional emission pattern. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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