Terahertz Generation Using Implanted InGaAs Photomixers and Multi-wavelength Quantum Dot Lasers

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• 作者：Y. Hou ; J. R. Liu ; M. Buchanan ; A. J. Spring Thorpe ; P. J. Poole…
• 关键词：Proton implanted InGaAs ; Trahertz ; Photomixer ; Multi ; wavelength quantum dot laser ; Fourier transform infrared spectroscopy
• 刊名：Nano-Micro Letters
• 出版年：2012
• 出版时间：March 2012
• 年：2012
• 卷：4
• 期：1
• 页码：10-13
• 全文大小：206KB
• 参考文献：[1]R. Kohler, A. Tredicucci, F. Beltram, H. E. Beere, E. H. Linfield, A. G. Davies, D. A. Ritchie, R. C. Iotti and F. Rossi, Nature 417, 156 (2002). http://?dx.?doi.?org /10.1038/417156aCrossRef
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• 作者单位：Y. Hou (12) (22)
  J. R. Liu (12)
  M. Buchanan (12)
  A. J. Spring Thorpe (12)
  P. J. Poole (12)
  H. C. Liu (12)
  Ke Wu (42)
  Sjoerd Roorda (52)
  X. P. Zhang (62)
  
  12. Institute for Microstructural Sciences, National Research Council, Ottawa, K1A 0R6, Canada
  22. Department of Electrical Engineering, Concordia University, Canada
  42. Department of Electrical Engineering, Ecole Polytechnique, Montréal, H3T 1J4, Canada
  52. Département de physique, Université de Montréal, Montréal, H3C 3J7, Canada
  62. Department of Electrical Engineering, Concordia University, Montreal, H3G 1M8, Canada
  
• 刊物类别：Nanotechnology and Microengineering; Nanotechnology; Nanoscale Science and Technology;
• 刊物主题：Nanotechnology and Microengineering; Nanotechnology; Nanoscale Science and Technology;
• 出版者：Springer Berlin Heidelberg
• ISSN：2150-5551

文摘

We report on a study of terahertz (THz) generation using implanted InGaAs photomixers and multi-wavelength quantum dot lasers. We carry out InGaAs materials growth, optical characterization, device design and fabrication, and photomixing experiments. This approach is capable of generating a comb of electromagnetic radiation from microwave to terahertz. For shortening photomixer carrier lifetime, we employ proton implantation into an epitaxial layer of lattice matched InGaAs grown on InP. Under a 1.55 μm multi-mode InGaAs/InGaAsP quantum dot laser excitation, a frequency comb with a constant frequency spacing of 50 GHz generated on the photomixer is measured, which corresponds to the beats of the laser longitudinal modes. The measurement is performed with a Fourier transform infrared spectrometer. This approach affords a convenient method to achieve a broadband multi-peak coherent THz source. Keywords Proton implanted InGaAs Trahertz Photomixer Multi-wavelength quantum dot laser Fourier transform infrared spectroscopy