Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Volume 38, Issue 10, Pages 3206-3211Publisher
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.435889
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Funding
- Fundamental Research Funds for the Central Universities
- Scientific Research Foundation of the Graduate School of Southeast University [YBPY2014]
- Project 333 of Jiangsu Province
- 111 Project [111-2-05]
- National Natural Science Foundation of China [61701108, 61831006, 62071117]
- National Key Research and Development Program of China [2017YFA0700201, 2017YFA0700202, 2017YFA0700203]
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The study presents a metasurface structure made up of graphene ribbons, which shows potential in realizing multifunctional applications. By utilizing graphene localized surface plasmons (GLSPs), the structure can function as a sensor and provide various amplitude profiles for different applications through proper space-time-coding sequences. The combination of graphene with coding sequences offers an effective method for instructing multifunctional devices.
Realizing multifunctional applications in a simple structure has garnered great interest. For this purpose, we theoretically and numerically demonstrate that an easy-to-fabricate metasurface, consisting of an array of graphene ribbons, can perform various functionalities. Due to the strong light-matter interaction caused by graphene localized surface plasmons (GLSPs), the proposed structure can be used as a sensor. In addition, by applying proper space-time-coding sequences to the gated graphene ribbons controlled by the field programmable gate array, there is immediate access to various amplitude profiles for different applications, including multiband absorbers (or reflectors) and harmonic beam steering. Compared with conventional GLSP-based devices, a combination of graphene with coding sequences offers an effective method to instruct multifunctional devices. (C) 2021 Optical Society of America
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