Enhanced Group Delay of the Pulse Reflection with Graphene Surface Plasmon via Modified Otto Configuration
In this paper, the group delay of the transverse magnetic (TM) polarized wave reflected from a modified Otto configuration with graphene surface plasmon is investigated theoretically. The findings show that the optical group delay in this structure can be enhanced negatively and can be switched from...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2017/1569621 |
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| _version_ | 1832545901506199552 |
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| author | Guimei Li Qiwei Liu Yue Liu Yueying Wei Rui Weng Yuxiang Zhou Leyong Jiang |
| author_facet | Guimei Li Qiwei Liu Yue Liu Yueying Wei Rui Weng Yuxiang Zhou Leyong Jiang |
| author_sort | Guimei Li |
| collection | DOAJ |
| description | In this paper, the group delay of the transverse magnetic (TM) polarized wave reflected from a modified Otto configuration with graphene surface plasmon is investigated theoretically. The findings show that the optical group delay in this structure can be enhanced negatively and can be switched from negative to positive due to the excitation of surface plasmon by graphene. It is clear that the negative group delay can be actively tuned through the Fermi energy of the graphene. Furthermore, the delay properties can also be manipulated by changing either the relaxation time of graphene or the distance between the coupling prism and the graphene. These tunable delay characteristics are promising for fabricating grapheme-based optical delay devices and other applications in the terahertz regime. |
| format | Article |
| id | doaj-art-0fd9c991805a4725bad08acc5304a790 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-0fd9c991805a4725bad08acc5304a7902025-02-03T07:24:20ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242017-01-01201710.1155/2017/15696211569621Enhanced Group Delay of the Pulse Reflection with Graphene Surface Plasmon via Modified Otto ConfigurationGuimei Li0Qiwei Liu1Yue Liu2Yueying Wei3Rui Weng4Yuxiang Zhou5Leyong Jiang6School of Computer and Information Engineering, Hunan University of Commerce, Changsha 410205, ChinaCollege of Physics and Information Science, Hunan Normal University, Changsha 410081, ChinaCollege of Physics and Information Science, Hunan Normal University, Changsha 410081, ChinaCollege of Physics and Information Science, Hunan Normal University, Changsha 410081, ChinaCollege of Physics and Information Science, Hunan Normal University, Changsha 410081, ChinaCollege of Physics and Information Science, Hunan Normal University, Changsha 410081, ChinaCollege of Physics and Information Science, Hunan Normal University, Changsha 410081, ChinaIn this paper, the group delay of the transverse magnetic (TM) polarized wave reflected from a modified Otto configuration with graphene surface plasmon is investigated theoretically. The findings show that the optical group delay in this structure can be enhanced negatively and can be switched from negative to positive due to the excitation of surface plasmon by graphene. It is clear that the negative group delay can be actively tuned through the Fermi energy of the graphene. Furthermore, the delay properties can also be manipulated by changing either the relaxation time of graphene or the distance between the coupling prism and the graphene. These tunable delay characteristics are promising for fabricating grapheme-based optical delay devices and other applications in the terahertz regime.http://dx.doi.org/10.1155/2017/1569621 |
| spellingShingle | Guimei Li Qiwei Liu Yue Liu Yueying Wei Rui Weng Yuxiang Zhou Leyong Jiang Enhanced Group Delay of the Pulse Reflection with Graphene Surface Plasmon via Modified Otto Configuration Advances in Condensed Matter Physics |
| title | Enhanced Group Delay of the Pulse Reflection with Graphene Surface Plasmon via Modified Otto Configuration |
| title_full | Enhanced Group Delay of the Pulse Reflection with Graphene Surface Plasmon via Modified Otto Configuration |
| title_fullStr | Enhanced Group Delay of the Pulse Reflection with Graphene Surface Plasmon via Modified Otto Configuration |
| title_full_unstemmed | Enhanced Group Delay of the Pulse Reflection with Graphene Surface Plasmon via Modified Otto Configuration |
| title_short | Enhanced Group Delay of the Pulse Reflection with Graphene Surface Plasmon via Modified Otto Configuration |
| title_sort | enhanced group delay of the pulse reflection with graphene surface plasmon via modified otto configuration |
| url | http://dx.doi.org/10.1155/2017/1569621 |
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