Title :
A Broadband Quasi-Optical Terahertz Detector Utilizing a Zero Bias Schottky Diode
Author :
Liu, Lei ; Hesler, Jeffrey L. ; Xu, Haiyong ; Lichtenberger, Arthur W. ; Weikle, Robert M., II
Author_Institution :
Dept. of Electr. Eng., Univ. of Notre Dame, Notre Dame, IN, USA
Abstract :
A quasi-optical broadband terahertz detector using a zero bias Schottky diode mounted on a self-complimentary sinuous antenna has been developed. Design and characterization of this detector are described. Measurements show that a responsivity of 300-1000 V/W covering the frequency range of 150-440 GHz has been achieved. The detector performance has been compared to waveguide detectors covering four frequency bands up to 600 GHz. A recent measurement at 600-900 GHz yielded the same output voltage as a waveguide detector. The noise equivalent power level of this detector is estimated to be 5-20 pW/√(Hz) based on the measurements of similar detectors.
Keywords :
Schottky diodes; terahertz wave detectors; broadband quasi-optical terahertz detector; self-complimentary sinuous antenna; waveguide detectors; zero bias Schottky diode; Antenna measurements; Arm; Bandwidth; Broadband antennas; Broadband communication; Detectors; Directive antennas; Frequency; Frequency measurement; Lenses; Schottky diodes; Silicon; Broadband; sinuous antenna; terahertz (THz) detector; zero bias Schotky diode;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2010.2055553
