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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
Source PublicationOPTICS EXPRESS
ISSN1094-4087
Volume24Issue:12Pages:13033-13043
AbstractA 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1364/OE.24.013033
Indexed BySCI
Language英语
WOS KeywordATOMIC-LAYER GRAPHENE ; 2-PHOTON ABSORPTION ; SATURABLE ABSORPTION ; NEGATIVE REFRACTION ; ULTRAFAST LASER ; MODE-LOCKING ; HIGH-QUALITY ; SINGLE ; FILMS ; OPTOELECTRONICS
WOS Research AreaOptics
WOS SubjectOptics
Funding OrganizationUK Engineering and Physical Sciences Research Council (EPSRC)(EP/G030227/1) ; Heriot-Watt University ; Ministry of Education, Singapore(R-144-000-327-112)
WOS IDWOS:000378298400057
Citation statistics
Cited Times:25[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21185
Collection多相复杂系统国家重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
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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