Title :
On the simulation of carrier dynamics in terahertz photoconductive antennas
Author :
Moreno, E. ; Pantoja, M.F. ; Garcia, S.G. ; Roldan, Juan B. ; Ruiz, Francisco G. ; Bretones, A.R. ; Martin, Rafael G.
Author_Institution :
Dept. of Electromagn. & Phys. Matter, Univ. of Granada, Granada, Spain
Abstract :
This communication shows the relevance of accounting for accurate physical models of carrier dynamics for the simulation of radiative semiconductor photoconductive devices in the terahertz operation regime. In particular, a significant influence of the semiconductor biased state was displayed for calculating the radiated electromagnetic field at the broadside direction. Comparison with experimental measurements demonstrates the superior performance of numerical schemes, including a detailed description of the biasing, considering not only the electric potential but also the carrier dynamics and local mobilities.
Keywords :
computational electromagnetics; dipole antennas; numerical analysis; photoconducting devices; terahertz wave devices; carrier dynamic simulation; numerical schemes; radiated electromagnetic field; radiative semiconductor photoconductive device simulation; terahertz photoconductive antennas; Antennas; Electromagnetic fields; Gallium arsenide; Principal component analysis; Photoconductive antennas; Semiconductor device modeling; Terahertz sources;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
