Dynamic beam control based on electrically switchable nanogratings from conducting polymers
| Autor: | Lee Yohan, Karst Julian, Ubl Monika, Hentschel Mario, Giessen Harald |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Nanophotonics, Vol 12, Iss 14, Pp 2865-2871 (2023) |
| Druh dokumentu: | article |
| ISSN: | 2192-8606 2192-8614 |
| DOI: | 10.1515/nanoph-2022-0801 |
| Popis: | Surging interests in point-of-device miniaturization have led to the development of metasurface-based optical components. Here, we demonstrate an electrically-driven ultracompact beam controller in the infrared spectral range. The effect benefits from diffraction gratings consisting of the commercially available conductive polymer PEDOT:PSS, which exhibits metal-to-insulator transition characteristics upon electrical biasing. By combining several metagratings with different superlattice periods in electrically isolated areas, our device enables diffraction beams at 16 and 33.5° when applying voltages of only ±1 V. Furthermore, no diffraction is realized by switching off the plasmonic property of the gratings. Dynamic control of electromagnetic wave via the presented platforms could be transformative for sensing, imaging, and communication applications. |
| Databáze: | Directory of Open Access Journals |
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