Title :
Terahertz emission properties of butterfly-shaped photoconductive antennas based on LT-GaAs and SI-GaAs substrates
Author :
Jitao Zhang ; Mingguang Tuo ; Min Liang ; Wei-Ren Ng ; Gehm, Michael E. ; Hao Xin
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
Photoconductive antennas (PCA) (one of the most commonly used terahertz emitters) have limited performance (e.g. low output power) and as such, do not fully meet the increasing needs of applications. This work attempts to find a route to further improve the performance of PCA by studying the dependence of emission properties on various parameters. Using substrates of LT-GaAs and SI-GaAs, the responses of PCAs with different structures are studied and compared.
Keywords :
III-V semiconductors; gallium arsenide; microwave antennas; photoconducting devices; submillimetre wave antennas; GaAs; PCA; butterfly-shaped photoconductive antennas; terahertz emission properties; terahertz emitters; Antennas; Charge carrier lifetime; Gallium arsenide; Measurement by laser beam; Power lasers; Principal component analysis; Substrates;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956233
