Angle-selective perfect absorption with two-dimensional materials
Two-dimensional (2D) materials have great potential in photonic and optoelectronic devices. However, the relatively weak light absorption in 2D materials hinders their application in practical devices. Here, we propose a general approach to achieve angle-selective perfect light absorption in 2D mate...
| Main Authors: | , , , , , , |
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| Format: | Article |
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Springer Nature
2017
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| Online Access: | http://hdl.handle.net/1721.1/111847 https://orcid.org/0000-0002-7233-3918 |
| _version_ | 1826194148293607424 |
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| author | Zhu, Linxiao Liu, Fengyuan Lin, Hongtao Hu, Juejun Yu, Zongfu Wang, Xinran Fan, Shanhui |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Zhu, Linxiao Liu, Fengyuan Lin, Hongtao Hu, Juejun Yu, Zongfu Wang, Xinran Fan, Shanhui |
| author_sort | Zhu, Linxiao |
| collection | MIT |
| description | Two-dimensional (2D) materials have great potential in photonic and optoelectronic devices. However, the relatively weak light absorption in 2D materials hinders their application in practical devices. Here, we propose a general approach to achieve angle-selective perfect light absorption in 2D materials. As a demonstration of the concept, we experimentally show giant light absorption by placing large-area single-layer graphene on a structure consisting of a chalcogenide layer atop a mirror and achieving a total absorption of 77.6% in the mid-infrared wavelength range (~13 μm), where the graphene contributes a record-high 47.2% absorptivity of mid-infrared light. Construction of such an angle-selective thin optical element is important for solar and thermal energy harvesting, photo-detection and sensing applications. Our study points to a new opportunity to combine 2D materials with photonic structures to enable novel device applications. |
| first_indexed | 2024-09-23T09:51:40Z |
| format | Article |
| id | mit-1721.1/111847 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T09:51:40Z |
| publishDate | 2017 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | mit-1721.1/1118472022-09-26T14:08:40Z Angle-selective perfect absorption with two-dimensional materials Zhu, Linxiao Liu, Fengyuan Lin, Hongtao Hu, Juejun Yu, Zongfu Wang, Xinran Fan, Shanhui Massachusetts Institute of Technology. Department of Materials Science and Engineering Lin, Hongtao Hu, Juejun Two-dimensional (2D) materials have great potential in photonic and optoelectronic devices. However, the relatively weak light absorption in 2D materials hinders their application in practical devices. Here, we propose a general approach to achieve angle-selective perfect light absorption in 2D materials. As a demonstration of the concept, we experimentally show giant light absorption by placing large-area single-layer graphene on a structure consisting of a chalcogenide layer atop a mirror and achieving a total absorption of 77.6% in the mid-infrared wavelength range (~13 μm), where the graphene contributes a record-high 47.2% absorptivity of mid-infrared light. Construction of such an angle-selective thin optical element is important for solar and thermal energy harvesting, photo-detection and sensing applications. Our study points to a new opportunity to combine 2D materials with photonic structures to enable novel device applications. 2017-10-13T20:30:10Z 2017-10-13T20:30:10Z 2015-12 2015-11 2017-10-11T17:52:42Z Article http://purl.org/eprint/type/JournalArticle 2047-7538 http://hdl.handle.net/1721.1/111847 Zhu, Linxiao, et al. “Angle-Selective Perfect Absorption with Two-Dimensional Materials.” Light: Science & Applications 5, 3 (December 2015): e16052 © 2017 Changchun Institute of Optics, Fine Mechanics and Physics https://orcid.org/0000-0002-7233-3918 http://dx.doi.org/10.1038/LSA.2016.52 Light: Science & Applications Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Springer Nature Nature |
| spellingShingle | Zhu, Linxiao Liu, Fengyuan Lin, Hongtao Hu, Juejun Yu, Zongfu Wang, Xinran Fan, Shanhui Angle-selective perfect absorption with two-dimensional materials |
| title | Angle-selective perfect absorption with two-dimensional materials |
| title_full | Angle-selective perfect absorption with two-dimensional materials |
| title_fullStr | Angle-selective perfect absorption with two-dimensional materials |
| title_full_unstemmed | Angle-selective perfect absorption with two-dimensional materials |
| title_short | Angle-selective perfect absorption with two-dimensional materials |
| title_sort | angle selective perfect absorption with two dimensional materials |
| url | http://hdl.handle.net/1721.1/111847 https://orcid.org/0000-0002-7233-3918 |
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