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A numerical method for analyzing the near field enhancement of non-spherical dielectric-core metallic-shell particles accounting for the non-local dispersionстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 12 августа 2020 г.
- Авторы: Eremin Yu, Doicu A., Wriedt T.
- Журнал: Journal of the Optical Society of America A: Optics and Image Science, and Vision
- Том: 37
- Номер: 7
- Год издания: 2020
- Издательство: Optical Society of America
- Местоположение издательства: United States
- Первая страница: 1135
- Последняя страница: 1142
- DOI: 10.1364/JOSAA.392537
- Аннотация: During last decades, dielectric core and metallic plasmonic shell (Die@Me) nanoparticles have found awide variety of applications. The trend to reduce the thickness of the metallic coating requires to account for the influence of the non-local dispersion on the spectral response of such nanoparticles. In this paper, we use the discrete sources method and the generalized non-local optical response model to describe the non-locality within the plasmonic metal shell. We found that the variation of the plasmonic shell thickness and the elongation of the non-spherical core-shell particle can enlarge the near field enhancement and the absorption cross section by an order of magnitude. Besides, we show that the non-local dispersion can decrease the field enhancement in the wavelength domain up to 2.5 times with a small blue shift of about 5 nm.
- Добавил в систему: Еремин Юрий Александрович