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 |
DOI | 10.1063/1.5027687 |
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. |
入库方式: OAI收割
来源:紫金山天文台
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