Open AccessFabrication and Characterization of Quasi-Optical Terahertz Nanorectifiers with Integrated Antennas
Author(s) -
Michele Ortolani,
Alessandra Di Gaspare,
R. Casini,
E. Giovine,
S. Lupi,
V. Foglietti
Publication year - 2012
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/359/1/012017
Subject(s) - terahertz radiation , fabrication , characterization (materials science) , optoelectronics , materials science , optics , physics , medicine , alternative medicine , pathology
We are developing microelectronic terahertz rectifiers by scaling down the dimensions of GaAs Schottky diodes and field-effect transistors to the sub-micron range, and by investigating the effect of on-chip parasitic capacitances on the square-law power detection signal. For broadband operation at THz frequencies the terahertz oscillating signal is fed to the device by integrated lithographic planar antennas, suitably coupled to a silicon substrate lens. Such room-temperature THz detectors can be fabricated in arrays and naturally provide picosecond response time, suitable for detection of coherent THz radiation produced by single electron bunches in accelerators