Field-effect self-mixing terahertz d...
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  • Field-effect self-mixing terahertz detectors[electronic resource] /
  • 紀錄類型: 書目-語言資料,印刷品 : Monograph/item
    杜威分類號: 621.3813
    書名/作者: Field-effect self-mixing terahertz detectors/ by Jiandong Sun.
    作者: Sun, Jiandong.
    出版者: Berlin, Heidelberg : : Springer Berlin Heidelberg :, 2016.
    面頁冊數: xviii, 126 p. : : ill., digital ;; 24 cm.
    Contained By: Springer eBooks
    標題: Terahertz technology.
    標題: Engineering.
    標題: Microwaves, RF and Optical Engineering.
    標題: Optics, Optoelectronics, Plasmonics and Optical Devices.
    標題: Semiconductors.
    標題: Solid State Physics.
    ISBN: 9783662486818
    ISBN: 9783662486795
    內容註: Introduction -- Field-Effect Self-Mixing Mechanism and Detector Model -- Realization of Terahertz Self-Mixing Detectors Based on AlGaN/GaN HEMT -- Realization of Resonant Plasmon Excitation and Detection -- Scanning Near-Field Probe for Antenna Characterization -- Applications -- Conclusions and Outlook.
    摘要、提要註: A comprehensive device model considering both spatial distributions of the terahertz field and the field-effect self-mixing factor has been constructed for the first time in the thesis. The author has found that it is the strongly localized terahertz field induced in a small fraction of the gated electron channel that plays an important role in the high responsivity. An AlGaN/GaN-based high-electron-mobility transistor with a 2-micron-sized gate and integrated dipole antennas has been developed and can offer a noise-equivalent power as low as 40 pW/Hz1/2 at 900 GHz. By further reducing the gate length down to 0.2 micron, a noise-equivalent power of 6 pW/Hz1/2 has been achieved. This thesis provides detailed experimental techniques and device simulation for revealing the self-mixing mechanism including a scanning probe technique for evaluating the effectiveness of terahertz antennas. As such, the thesis could be served as a valuable introduction towards further development of high-sensitivity field-effect terahertz detectors for practical applications.
    電子資源: http://dx.doi.org/10.1007/978-3-662-48681-8
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