Übersicht			Auf mobile öffnen

Lieferstatus:	Auf Bestellung (Lieferzeit unbekannt)
Veröffentlichung:	März 2018
Genre:	Naturwissensch., Medizin, Technik
	Applied optics / B / Electronic Devices / Electronic devices & materials / engineering / Laser / Lasers / Microwaves / Microwaves, RF and Optical Engineering / Microwaves, RF Engineering and Optical Communications / Optical engineering / Optical physics / Optics, Lasers, Photonics, Optical Devices / Photonics / Semiconductors / Solid State Physics / Spectrum analysis, spectrochemistry, mass spectrometry
ISBN:	9783662569481
EAN-Code:	9783662569481
Verlag:	Springer Nature EN
Einband:	Kartoniert
Sprache:	English
Serie:	Springer Theses
Dimensionen:	H 235 mm / B 155 mm / D
Gewicht:	232 gr
Seiten:	126
Illustration:	XVIII, 126 p. 84 illus., 4 illus. in color., schwarz-weiss Illustrationen, farbige Illustrationen
Zus. Info:	Previously published in hardcover
Bewertung:	Titel bewerten / Meinung schreiben

Inhalt:

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 anddevice 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.