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https://elib.bsu.by/handle/123456789/274183
Заглавие документа: | All-graphene perfect broadband THz absorber |
Авторы: | Baah, Marian Paddubskaya, Alesia Novitsky, Andrey V. Valynets, Nadzeya Kumar, Mukesh Itkonen, Tommi Pekkarinen, Markku Soboleva, Ekaterina Lahderanta, Erkki Kafesaki, Maria Svirko, Yuri Kuzhir, Polina |
Тема: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика |
Дата публикации: | 2021 |
Библиографическое описание источника: | Baah, M. All-graphene perfect broadband THz absorber / M. Baah, A. Paddubskaya, A. Novitsky, N. Valynets, M. Kumar, T. Itkonen, M. Pekkarinen, E. Soboleva, E. Lahderanta, M. Kafesaki, Y. Svirko, P. Kuzhir // Carbon – 2021. - V.185 – P.709-716. |
Аннотация: | By combining the 3D printing, electroplating and chemical vapor deposition processes we fabricated “bubble wrap” polymer nanomembrane covered with multilayered graphene. Such a metasurface composed of array of graphene hemispheres shows extremely broadband and almost perfect absorption in terahertz (THz)2 frequency range being robust against macroscopic structural defects including holes and volcanic-like hats on hemispherical metaatoms. The developed theory perfectly explains our experimental findings including virtual independence of the metasurface transmittivity, reflectivity and absorptivity on the angle of incidence in terms of the plasmon dark mode formation. Our approach enables the THz perfect absorber that covers a frequency range spanning from few hundreds of GHz to 1.2 THz, and even more, while the proposed fabrication technique can also be employed in numerous applications that require free standing corrugated graphene/polymer nanomembranes. |
URI документа: | https://elib.bsu.by/handle/123456789/274183 |
DOI документа: | 10.1016/j.carbon.2021.09.06 |
Финансовая поддержка: | This work is supported by the Academy of Finland grant no. 343393, and Flagship Programme “Photonics Research and Innovation (PREIN)” decision no. 320165, Horizon 2020 grants no. 823728 (DiSetCom) P.K. is supported by Horizon 2020 grants no. 836816 (TURANDOT). |
Лицензия: | info:eu-repo/semantics/openAccess |
Располагается в коллекциях: | Кафедра теоретической физики и астрофизики (статьи) |
Полный текст документа:
Файл | Описание | Размер | Формат | |
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Baah-2021-All-graphene-perfect-broadband-thz.pdf | 1,99 MB | Adobe PDF | Открыть |
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