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Nonlinear optical properties of multilayer graphene in the infrared
Demetriou, Giorgos1; Bookey, Henry T.1,2; Biancalana, Fabio1; Abraham, Eitan1; Wang, Yu3; Ji, Wei4; Kar, Ajoy K.1
2016-06-13
发表期刊OPTICS EXPRESS
ISSN1094-4087
卷号24期号:12页码:13033-13043
摘要A negative value for the nonlinear refraction in graphene is experimentally observed and unambiguously verified by performing a theoretical analysis arising from the conductivity of the graphene monolayer. The nonlinear optical properties of multi-layer graphene are experimentally studied by employing the Z-scan technique. The measurements are carried out at 1150, 1550, 1900 and 2400 nm with a 100-femtosecond laser source. Under laser illumination the multi-layer graphene exhibits a transmittance increase due to saturable absorption, followed by optical limiting due to two-photon absorption. The saturation irradiance I-sat and the two-photon absorption coefficient beta are measured in the operating wavelength range. Furthermore, an irradiance-dependent nonlinear refraction is observed and discriminated from the conventional nonlinear refraction coefficient n(2), which is not irradiance dependent. The values obtained for the irradiance-dependent nonlinear refraction are in the order of similar to 10(-9) cm(2)W(-1), approximately 8 orders of magnitude larger than any bulk dielectrics. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1364/OE.24.013033
收录类别SCI
语种英语
关键词[WOS]ATOMIC-LAYER GRAPHENE ; 2-PHOTON ABSORPTION ; SATURABLE ABSORPTION ; NEGATIVE REFRACTION ; ULTRAFAST LASER ; MODE-LOCKING ; HIGH-QUALITY ; SINGLE ; FILMS ; OPTOELECTRONICS
WOS研究方向Optics
WOS类目Optics
项目资助者UK Engineering and Physical Sciences Research Council (EPSRC)(EP/G030227/1) ; Heriot-Watt University ; Ministry of Education, Singapore(R-144-000-327-112)
WOS记录号WOS:000378298400057
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21185
专题多相复杂系统国家重点实验室
作者单位1.Heriot Watt Univ, Sch Engn & Phys Sci, Inst Photon & Quantum Sci, David Brewster Bldg, Edinburgh EH14 4AS, Midlothian, Scotland
2.Fraunhofer Ctr Appl Photon, Technol & Innovat Ctr, 99 George St, Glasgow G1 1RD, Lanark, Scotland
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
4.Natl Univ Singapore, Dept Phys, 2 Sci Dr 3, Singapore 117542, Singapore
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Demetriou, Giorgos,Bookey, Henry T.,Biancalana, Fabio,et al. Nonlinear optical properties of multilayer graphene in the infrared[J]. OPTICS EXPRESS,2016,24(12):13033-13043.
APA Demetriou, Giorgos.,Bookey, Henry T..,Biancalana, Fabio.,Abraham, Eitan.,Wang, Yu.,...&Kar, Ajoy K..(2016).Nonlinear optical properties of multilayer graphene in the infrared.OPTICS EXPRESS,24(12),13033-13043.
MLA Demetriou, Giorgos,et al."Nonlinear optical properties of multilayer graphene in the infrared".OPTICS EXPRESS 24.12(2016):13033-13043.
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