Field-effect Self-mixing Terahertz Detectors

Jiandong Sun (Autor)

Buch | Softcover

XVIII, 126 Seiten

2018 | Softcover reprint of the original 1st ed. 2016
Springer Berlin (Verlag)
9783662569481 (ISBN)

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A comprehensive device model considering both spatialdistributions of the terahertz field and the field-effect self-mixing factorhas been constructed for the first time in the thesis. The author has foundthat it is the strongly localized terahertz field induced in a small fractionof the gated electron channel that plays an important role in the highresponsivity. An AlGaN/GaN-based high-electron-mobility transistor with a2-micron-sized gate and integrated dipole antennas has been developed and canoffer a noise-equivalent power as low as 40 pW/Hz1/2 at 900 GHz. By furtherreducing the gate length down to 0.2 micron, a noise-equivalent power of 6pW/Hz1/2 has been achieved. This thesis provides detailed experimentaltechniques anddevice simulation for revealing the self-mixing mechanismincluding a scanning probe technique for evaluating the effectiveness ofterahertz antennas. As such, the thesis could be served as a valuableintroduction towards further development of high-sensitivity field-effect terahertzdetectors for practical applications.

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.

Erscheinungsdatum	18.06.2018
Reihe/Serie	Springer Theses
Zusatzinfo	XVIII, 126 p. 84 illus., 4 illus. in color.
Verlagsort	Berlin
Sprache	englisch
Maße	155 x 235 mm
Gewicht	231 g
Themenwelt	Naturwissenschaften ► Physik / Astronomie ► Festkörperphysik
	Naturwissenschaften ► Physik / Astronomie ► Optik
	Technik ► Elektrotechnik / Energietechnik
Schlagworte	Finite-Difference Time-Domain (FDTD) • GaN/AlGaN Heterostructure • High-Electron-Mobility Transistor (HEMT) • Self-Mixing • Terahertz antenna • terahertz detector • THz Near-Field Optics • Two-Dimensional Electron System (2DES) • Two-Dimensional Plasma Wave
ISBN-13	9783662569481 / 9783662569481
Zustand	Neuware