Guoqiang He, Shkerdin Gennady, Alkorre Hameda, Stiens Johan Finite-Difference Frequency-Domain Method Simulates Electromagnetic Wave Propagation Properties of Parallel Plate Waveguide with Graphene and SiO2 Layers. In: 20th Annual Symposium of the IEEE Photonics Society Benelux Chapter, November 26-27, 2015, Brussels, Belgium , Universite libre de Bruxelles , С. 279-282.
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Graphene draws massive interests due to its outstanding physical properties. In recent years, extensive studies have shown its promising features in terahertz (THz) and infrared frequency ranges. However, the electromagnetic properties of graphene in the microwave and millimeter wave range are still not well understood. In this paper, we employed finite difference frequency domain (FDFD) method to simulate the electromagnetic (EM) behavior of parallel plate waveguides (PPWG) with graphene and a silicon dioxide (SiO2) buffer layer at 300 GHz. It is shown that the EM wave can be modulated with the presence of the graphene layer. As the thickness of graphene is infinitesimally compared to the operating wavelength, the non-uniform grid technique is used to overcome the challenge of this multi-scale issue. In order to verify the accuracy of the numerical method, the simulated results are compared with analytical calculations. The agreement of numerical and theoretical studies proves that electromagnetic wave propagation properties of PPWG can be modulated by changing buffer thickness or by electrically biasing the grapheme layer. This feature of graphene can be used to design new type of electromagnetic devices, such as, compact electrically tunable phase shifters or amplitude modulators.
| Тип объекта: | Доклад на конференции или семинаре (Постер) |
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| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Гуокианг Хе, Шкердин Г.Н., Алкорре Хамеда, Стинс Йохан |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 257 лаб. быстропротекающих оптических явлений в твердотельных структурах |
| URI: | http://cplire.ru:8080/id/eprint/3105 |
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