Tunable absorption characteristics in multilayered structures with graphene for biosensing
Graphene derivatives, possessing strong Raman scattering and near-infrared absorption intrinsically, have boosted many exciting biosensing applications. The tunability of the absorption characteristics, however, remains largely unexplored to date. Here, we proposed a multilayer configuration constru...
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| Format: | Article |
| Language: | English |
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World Scientific Publishing
2020-07-01
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| Series: | Journal of Innovative Optical Health Sciences |
| Subjects: | |
| Online Access: | http://www.worldscientific.com/doi/pdf/10.1142/S1793545820500170 |
| _version_ | 1818623204232527872 |
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| author | Li Jin Jun Zhou Puxiang Lai |
| author_facet | Li Jin Jun Zhou Puxiang Lai |
| author_sort | Li Jin |
| collection | DOAJ |
| description | Graphene derivatives, possessing strong Raman scattering and near-infrared absorption intrinsically, have boosted many exciting biosensing applications. The tunability of the absorption characteristics, however, remains largely unexplored to date. Here, we proposed a multilayer configuration constructed by a graphene monolayer sandwiched between a buffer layer and one-dimensional photonic crystal (1DPC) to achieve tunable graphene absorption under total internal reflection (TIR). It is interesting that the unique optical properties of the buffer-graphene-1DPC multilayer structure, the electromagnetically induced transparency (EIT)-like and Fano-like absorptions, can be achieved with pre-determined resonance wavelengths, and furtherly be tuned by adjusting either the structure parameters or the incident angle of light. Theoretical analyses demonstrate that such EIT- and Fano-like absorptions are due to the interference of light in the multilayer structure and the complete transmission produced by the evanescent wave resonance in the configuration. The enhanced absorptions and the huge electrical field enhancement effect exhibit potentials for broad applications, such as photoacoustic imaging and Raman imaging. |
| first_indexed | 2024-12-16T18:37:21Z |
| format | Article |
| id | doaj.art-7976f8d845984c7a98a8fabcaaa196c3 |
| institution | Directory Open Access Journal |
| issn | 1793-5458 1793-7205 |
| language | English |
| last_indexed | 2024-12-16T18:37:21Z |
| publishDate | 2020-07-01 |
| publisher | World Scientific Publishing |
| record_format | Article |
| series | Journal of Innovative Optical Health Sciences |
| spelling | doaj.art-7976f8d845984c7a98a8fabcaaa196c32022-12-21T22:21:08ZengWorld Scientific PublishingJournal of Innovative Optical Health Sciences1793-54581793-72052020-07-011342050017-12050017-1110.1142/S179354582050017010.1142/S1793545820500170Tunable absorption characteristics in multilayered structures with graphene for biosensingLi Jin0Jun Zhou1Puxiang Lai2Department of Biomedical Engineering, Hong Kong Polytechnic University, Hong Kong, P. R. ChinaDepartment of Microelectronic Engineering, School of Physical Science & Technology, Ningbo University, Ningbo 315211, Zhejiang, P. R. ChinaDepartment of Biomedical Engineering, Hong Kong Polytechnic University, Hong Kong, P. R. ChinaGraphene derivatives, possessing strong Raman scattering and near-infrared absorption intrinsically, have boosted many exciting biosensing applications. The tunability of the absorption characteristics, however, remains largely unexplored to date. Here, we proposed a multilayer configuration constructed by a graphene monolayer sandwiched between a buffer layer and one-dimensional photonic crystal (1DPC) to achieve tunable graphene absorption under total internal reflection (TIR). It is interesting that the unique optical properties of the buffer-graphene-1DPC multilayer structure, the electromagnetically induced transparency (EIT)-like and Fano-like absorptions, can be achieved with pre-determined resonance wavelengths, and furtherly be tuned by adjusting either the structure parameters or the incident angle of light. Theoretical analyses demonstrate that such EIT- and Fano-like absorptions are due to the interference of light in the multilayer structure and the complete transmission produced by the evanescent wave resonance in the configuration. The enhanced absorptions and the huge electrical field enhancement effect exhibit potentials for broad applications, such as photoacoustic imaging and Raman imaging.http://www.worldscientific.com/doi/pdf/10.1142/S1793545820500170graphenephotonic crystalelectromagnetically induced transparencyabsorption |
| spellingShingle | Li Jin Jun Zhou Puxiang Lai Tunable absorption characteristics in multilayered structures with graphene for biosensing Journal of Innovative Optical Health Sciences graphene photonic crystal electromagnetically induced transparency absorption |
| title | Tunable absorption characteristics in multilayered structures with graphene for biosensing |
| title_full | Tunable absorption characteristics in multilayered structures with graphene for biosensing |
| title_fullStr | Tunable absorption characteristics in multilayered structures with graphene for biosensing |
| title_full_unstemmed | Tunable absorption characteristics in multilayered structures with graphene for biosensing |
| title_short | Tunable absorption characteristics in multilayered structures with graphene for biosensing |
| title_sort | tunable absorption characteristics in multilayered structures with graphene for biosensing |
| topic | graphene photonic crystal electromagnetically induced transparency absorption |
| url | http://www.worldscientific.com/doi/pdf/10.1142/S1793545820500170 |
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