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Excitation of graphene surface plasmons polaritons by guided-mode resonances with high efficiencyстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 3 июня 2020 г.
- Авторы: Ren Yuxiang, Guo Xuguang, Zhang Guixue, Balakin Alexey V., Shkurinov Alexander P., Anqi Yu, Zhu Yiming
- Журнал: Optics Express
- Том: 28
- Номер: 9
- Год издания: 2020
- Издательство: Optical Society of America
- Местоположение издательства: United States
- Первая страница: 13224
- Последняя страница: 13233
- DOI: 10.1364/OE.391237
- Аннотация: An Otto-like configuration for the excitation of graphene surface plasmon polaritons (GSPPs) is proposed. The configuration is composed of a metallic grating-dielectric-waveguide structure and a monolayer graphene with a subwavelength vacuum gap between them. The evanescent field located at the bottom surface of the dielectric waveguide corresponding to grating-coupled guided-mode resonances (GMRs) is utilized to efficiently excite the highly confined GSPPs. The finite difference time domain method is used to investigate the behaviors of the GMR-GSPP hybrid modes. The dispersion relations of GMRs and GSPPs are calculated and the numerical results further identify the excitation of GMR-GSPP hybrid modes. By changing the gap between the graphene layer and the bottom of the dielectric waveguide and the Fermi energy of graphene, the resonant frequencies of GMR-GSPP hybrid modes can be continuously tuned. When the optimized excitation condition is satisfied, the maximum energy enhancement factor in the gap can reach about 500 at the resonant frequencies. The proposed structure can be used to realize highly sensitive, compatible with planar fabrication technology, and electrically (mechanically) tunable sensors.
- Добавил в систему: Шкуринов Александр Павлович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | oe-28-9-13224.pdf | 3,5 МБ | 3 июня 2020 [ashkurinov] |