Direct observation of an irradiance dependent nonlinear refraction in CVD single layer graphene
文献类型：期刊论文
| 作者 | Demetriou, G.1; Biancalana, F.1; Abraham, E.4; Ji, W.3; Wang, Y.2; Kar, A. K.1 |
| 刊名 | OPTICS COMMUNICATIONS
 |
| 出版日期 | 2021-02-15 |
| 卷号 | 481页码:4 |
| ISSN号 | 0030-4018 |
| 关键词 | Graphene Nonlinear optical materials Ultrafast nonlinear optics Nonlinear refraction |
| DOI | 10.1016/j.optcom.2020.126535 |
| 英文摘要 | The nonlinear optical properties of single layer graphene are studied via Z-scan. The measurements are carried out at 1045 nm with a 360 femtosecond highly stable Yb doped mode-locked fiber laser. Under laser illumination single-layer graphene exhibits both a transmittance increase due to saturable absorption and a nonlinear phase-shift due to nonlinear refraction. The nonlinear refraction measurements were carried out from 0.5 to 8 GW/cm(2) revealing an expected irradiance-dependent nonlinear refraction. An effective nonlinear refractive index coefficient (n) over tilde (I) is used to describe this and discriminate it from the conventional n(2) coefficient usually measured by Z-scan. The saturation level of the nonlinear phase-shift where the nonlinear response becomes irradiance dependent is deduced from the experimental data. |
| WOS关键词 | 2-PHOTON ABSORPTION ; INDEX ; FILMS |
| 资助项目 | UK Engineering and Physical Sciences Research Council (EPSRC)[EP/G030227/1] ; UK Engineering and Physical Sciences Research Council (EPSRC)[EP/M015130/1] ; Ministry of Education of Singapore[R-144-000-327-112] ; Heriot-Watt University, United Kingdom |
| WOS研究方向 | Optics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000593986500004 |
| 资助机构 | UK Engineering and Physical Sciences Research Council (EPSRC) ; Ministry of Education of Singapore ; Heriot-Watt University, United Kingdom |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/42741]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Demetriou, G. |
| 作者单位 | 1.Heriot Watt Univ, Sch Engn & Phys Sci, Inst Photon & Quantum Sci, David Brewster, Edinburgh EH14 4AS, Midlothian, Scotland 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Natl Univ Singapore, Dept Phys, 2 Sci Dr 3, Singapore 117542, Singapore 4.Heriot Watt Univ, Sch Engn & Phys Sci, Inst Biol Chem Biophys & Bioengn, David Brewster Bldg, Edinburgh EH14 4AS, Midlothian, Scotland |
| 推荐引用方式 GB/T 7714 | Demetriou, G.,Biancalana, F.,Abraham, E.,et al. Direct observation of an irradiance dependent nonlinear refraction in CVD single layer graphene[J]. OPTICS COMMUNICATIONS,2021,481:4. |
| APA | Demetriou, G.,Biancalana, F.,Abraham, E.,Ji, W.,Wang, Y.,&Kar, A. K..(2021).Direct observation of an irradiance dependent nonlinear refraction in CVD single layer graphene.OPTICS COMMUNICATIONS,481,4. |
| MLA | Demetriou, G.,et al."Direct observation of an irradiance dependent nonlinear refraction in CVD single layer graphene".OPTICS COMMUNICATIONS 481(2021):4. |
入库方式： OAI收割
来源：过程工程研究所
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