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Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures
Zheng, Ze-Bo; Li, Jun-Tao; Ma, Teng; Fang, Han-Lin; Ren, Wen-Cai; Chen, Jun; She, Jun-Cong; Zhang, Yu; Liu, Fei; Chen, Huan-Jun; Deng, Shao-Zhi; Xu, Ning-Sheng; Chen, HJ; Deng, SZ; Xu, NS (reprint author), Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, Guangdong Prov Key Lab Display Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China.
2017-10-06
Source PublicationCHINESE ACAD SCIENCES, CHANGCHUN INST OPTICS FINE MECHANICS AND PHYSICS
ISSN2047-7538
Volume6Pages:-
AbstractGraphene has great potential for enhancing light - matter interactions in a two-dimensional regime due to surface plasmons with low loss and strong light confinement. Further utilization of graphene in nanophotonics relies on the precise control of light localization properties. Here, we demonstrate the tailoring of electromagnetic field localizations in the mid-infrared region by precisely shaping the graphene into nanostructures with different geometries. We generalize the phenomenological cavity model and employ nanoimaging techniques to quantitatively calculate and experimentally visualize the two-dimensional electromagnetic field distributions within the nanostructures, which indicate that the electromagnetic field can be shaped into specific patterns depending on the shapes and sizes of the nanostructures. Furthermore, we show that the light localization performance can be further improved by reducing the sizes of the nanostructures, where a lateral confinement of lambda(0)/180 of the incidence light can be achieved. The electromagnetic field localizations within a nanostructure with a specific geometry can also be modulated by chemical doping. Our strategies can, in principle, be generalized to other two-dimensional materials, therefore providing new degrees of freedom for designing nanophotonic components capable of tailoring two-dimensional light confinement over a broad wavelength range.; Graphene has great potential for enhancing light - matter interactions in a two-dimensional regime due to surface plasmons with low loss and strong light confinement. Further utilization of graphene in nanophotonics relies on the precise control of light localization properties. Here, we demonstrate the tailoring of electromagnetic field localizations in the mid-infrared region by precisely shaping the graphene into nanostructures with different geometries. We generalize the phenomenological cavity model and employ nanoimaging techniques to quantitatively calculate and experimentally visualize the two-dimensional electromagnetic field distributions within the nanostructures, which indicate that the electromagnetic field can be shaped into specific patterns depending on the shapes and sizes of the nanostructures. Furthermore, we show that the light localization performance can be further improved by reducing the sizes of the nanostructures, where a lateral confinement of lambda(0)/180 of the incidence light can be achieved. The electromagnetic field localizations within a nanostructure with a specific geometry can also be modulated by chemical doping. Our strategies can, in principle, be generalized to other two-dimensional materials, therefore providing new degrees of freedom for designing nanophotonic components capable of tailoring two-dimensional light confinement over a broad wavelength range.
description.department[zheng, ze-bo ; chen, jun ; she, jun-cong ; zhang, yu ; liu, fei ; chen, huan-jun ; deng, shao-zhi ; xu, ning-sheng] sch elect & informat technol, state key lab optoelect mat & technol, guangdong prov key lab display mat & technol, guangzhou 510275, guangdong, peoples r china ; [zheng, ze-bo ; li, jun-tao ; fang, han-lin] sun yat sen univ, sch phys, state key lab optoelect mat & technol, guangzhou 510275, guangdong, peoples r china ; [ma, teng ; ren, wen-cai] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, liaoning, peoples r china
KeywordChemical Doping Electromagnetic Field Localizations Graphene Graphene Nanostructures Graphene Plasmons
Subject AreaOptics
Funding OrganizationNational Natural Science Foundation of China [51290271, 11474364, 51290273]; National Key Basic Research Program of China [2013CB933601, 2013YQ12034506]; Guangdong Natural Science Funds Distinguished Young Scholars [2014A030306017]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79048
Collection中国科学院金属研究所
Corresponding AuthorChen, HJ; Deng, SZ; Xu, NS (reprint author), Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, Guangdong Prov Key Lab Display Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China.
Recommended Citation
GB/T 7714
Zheng, Ze-Bo,Li, Jun-Tao,Ma, Teng,et al. Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures[J]. CHINESE ACAD SCIENCES, CHANGCHUN INST OPTICS FINE MECHANICS AND PHYSICS,2017,6:-.
APA Zheng, Ze-Bo.,Li, Jun-Tao.,Ma, Teng.,Fang, Han-Lin.,Ren, Wen-Cai.,...&Xu, NS .(2017).Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures.CHINESE ACAD SCIENCES, CHANGCHUN INST OPTICS FINE MECHANICS AND PHYSICS,6,-.
MLA Zheng, Ze-Bo,et al."Tailoring of electromagnetic field localizations by two-dimensional graphene nanostructures".CHINESE ACAD SCIENCES, CHANGCHUN INST OPTICS FINE MECHANICS AND PHYSICS 6(2017):-.
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