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The design of a high voltage responsivity terahertz detector based on improved grounding model
Author(s) -
Liu Siyu,
Zhang Dehai,
Meng Jin,
Zhu HaoTian
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32908
Subject(s) - responsivity , terahertz radiation , detector , schottky diode , optoelectronics , diode , materials science , voltage , capacitance , ground , biasing , optics , electrical engineering , physics , engineering , electrode , quantum mechanics
A high voltage responsivity detector in G‐band is designed in this paper. Different grounding models for the terahertz detector are analyzed and designed. Gold wire grounding design is superior to traditional grounding designs, which reduce the influence caused by the doping concentration, position and thickness error of conductive adhesive. Detectors are based on the Virginia Diodes Inc G‐band zero‐bias Schottky diode with low zero‐bias junction capacitance. The voltage responsivity test result of the gold wire grounding detector is about 1800 mV/mW in 210–220 GHz. The development of the detector provides the device basis for the realization of a terahertz focal plane imaging system.