中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Amplitude stabilization and active control of a terahertz quantum cascade laser with a graphene loaded split-ring-resonator array

文献类型:期刊论文

作者Wei, B.1; Kindness, S. J.1; Almond, N. W.1; Wallis, R.1; Wu, Y.1; Ren, Y.2,3; Shi, S. C.2,3; Braeuninger-Weimer, P.4; Hofmann, S.4; Beere, H. E.1
刊名APPLIED PHYSICS LETTERS
出版日期2018-05-14
卷号112期号:20页码:4
ISSN号0003-6951
DOI10.1063/1.5027687
通讯作者Wei, B.(bw373@cam.ac.uk)
英文摘要We demonstrate the amplitude stabilization of a 2.85 THz quantum cascade laser with a graphene loaded split-ring-resonator array acting as an external amplitude modulator. The transmittance of the modulator can be actively changed by modifying the graphene conductivity via electrostatic back-gating. The modulator operates at room temperature and is capable of actively modulating the quantum cascade laser power level and thus stabilizing the power output via a proportional-integral-derivative feedback control loop. The stability was enhanced by more than 10 times through actively tuning the modulation. Furthermore, this approach can be used to externally control the laser power with a high level of stability. Published by AIP Publishing.
WOS研究方向Physics
语种英语
出版者AMER INST PHYSICS
WOS记录号WOS:000432553900002
源URL[http://libir.pmo.ac.cn/handle/332002/21997]  
专题中国科学院紫金山天文台
通讯作者Wei, B.
作者单位1.Univ Cambridge, Cavendish Lab, JJ Thomson Ave, Cambridge CB3 0HE, England
2.Chinese Acad Sci, Purple Mt Observ, 8 Yuanhua Rd, Nanjing 210034, Jiangsu, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, 8 Yuanhua Rd, Nanjing 210034, Jiangsu, Peoples R China
4.Univ Cambridge, Dept Engn, 9 JJ Thomson Ave, Cambridge CB3 0FA, England
5.Univ Lancaster, Dept Engn, Engn Bldg, Lancaster LA1 4YW, England
推荐引用方式
GB/T 7714
Wei, B.,Kindness, S. J.,Almond, N. W.,et al. Amplitude stabilization and active control of a terahertz quantum cascade laser with a graphene loaded split-ring-resonator array[J]. APPLIED PHYSICS LETTERS,2018,112(20):4.
APA Wei, B..,Kindness, S. J..,Almond, N. W..,Wallis, R..,Wu, Y..,...&Degl'lnnocenti, R..(2018).Amplitude stabilization and active control of a terahertz quantum cascade laser with a graphene loaded split-ring-resonator array.APPLIED PHYSICS LETTERS,112(20),4.
MLA Wei, B.,et al."Amplitude stabilization and active control of a terahertz quantum cascade laser with a graphene loaded split-ring-resonator array".APPLIED PHYSICS LETTERS 112.20(2018):4.

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来源:紫金山天文台

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