Graphene-based tunable plasmonic Bragg reflector with a broad bandwidth
We propose and numerically analyze a plasmonic Bragg reflector formed in a graphene waveguide. The results show that the graphene plasmonic Bragg reflector can produce a broadband stopband that can be tuned over a wide wavelength range by a small change in the Fermi energy level of graphene. By intr...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/104098 http://hdl.handle.net/10220/19492 |
| _version_ | 1826115456421855232 |
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| author | Dubrovkin, Alexander Wang, Qi Jie Tao, Jin Yu, XueChao Hu, Bin |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Dubrovkin, Alexander Wang, Qi Jie Tao, Jin Yu, XueChao Hu, Bin |
| author_sort | Dubrovkin, Alexander |
| collection | NTU |
| description | We propose and numerically analyze a plasmonic Bragg reflector formed in a graphene waveguide. The results show that the graphene plasmonic Bragg reflector can produce a broadband stopband that can be tuned over a wide wavelength range by a small change in the Fermi energy level of graphene. By introducing a defect into the Bragg reflector, we can achieve a Fabry–Perot-like microcavity with a quality factor of 50 for the defect resonance mode formed in the stopband. The proposed Bragg reflector could be used as a broadband ultrafast tunable integrated filter and a broadband modulator. In addition, the defect microcavity may find applications in graphene-based resonators. |
| first_indexed | 2024-10-01T03:55:27Z |
| format | Journal Article |
| id | ntu-10356/104098 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:55:27Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1040982023-02-28T19:44:28Z Graphene-based tunable plasmonic Bragg reflector with a broad bandwidth Dubrovkin, Alexander Wang, Qi Jie Tao, Jin Yu, XueChao Hu, Bin School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences DRNTU::Science::Physics::Optics and light We propose and numerically analyze a plasmonic Bragg reflector formed in a graphene waveguide. The results show that the graphene plasmonic Bragg reflector can produce a broadband stopband that can be tuned over a wide wavelength range by a small change in the Fermi energy level of graphene. By introducing a defect into the Bragg reflector, we can achieve a Fabry–Perot-like microcavity with a quality factor of 50 for the defect resonance mode formed in the stopband. The proposed Bragg reflector could be used as a broadband ultrafast tunable integrated filter and a broadband modulator. In addition, the defect microcavity may find applications in graphene-based resonators. Published version 2014-06-02T03:36:07Z 2019-12-06T21:26:21Z 2014-06-02T03:36:07Z 2019-12-06T21:26:21Z 2014 2014 Journal Article Tao, J., Yu, X., Hu, B., Dubrovkin, A., & Wang, Q. J. (2014). Graphene-based tunable plasmonic Bragg reflector with a broad bandwidth. Optics Letters, 39(2), 271-274. 0146-9592 https://hdl.handle.net/10356/104098 http://hdl.handle.net/10220/19492 10.1364/OL.39.000271 en Optics letters © 2014 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following official DOI: http://dx.doi.org/10.1364/OL.39.000271. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | DRNTU::Science::Physics::Optics and light Dubrovkin, Alexander Wang, Qi Jie Tao, Jin Yu, XueChao Hu, Bin Graphene-based tunable plasmonic Bragg reflector with a broad bandwidth |
| title | Graphene-based tunable plasmonic Bragg reflector with a broad bandwidth |
| title_full | Graphene-based tunable plasmonic Bragg reflector with a broad bandwidth |
| title_fullStr | Graphene-based tunable plasmonic Bragg reflector with a broad bandwidth |
| title_full_unstemmed | Graphene-based tunable plasmonic Bragg reflector with a broad bandwidth |
| title_short | Graphene-based tunable plasmonic Bragg reflector with a broad bandwidth |
| title_sort | graphene based tunable plasmonic bragg reflector with a broad bandwidth |
| topic | DRNTU::Science::Physics::Optics and light |
| url | https://hdl.handle.net/10356/104098 http://hdl.handle.net/10220/19492 |
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