Far field radiation in sub-picosecond systems

Author

Remley, K.A. ; Weisshaar, A. ; Goodnick, S.M. ; Tripathi, V.K.

Author_Institution

Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA

Volume

1

fYear

1997

fDate

8-13 June 1997

Firstpage

163

Abstract

FDTD and Monte Carlo methods are combined to simulate the terahertz radiation fields from a coplanar photoconducting structure. Two techniques are considered for modeling the far field radiation. One uses Maxwell equations directly with an approximation made regarding the source term. As an improvement to the first technique, we propose the use of a near-to-far-field FDTD transformation with the use of equivalent surface current densities. Computational results showing the far field radiation are in agreement with published experimental results.

Keywords

Maxwell equations; Monte Carlo methods; finite difference time-domain analysis; photoconducting devices; submillimetre wave devices; FDTD model; Maxwell equations; Monte Carlo simulation; coplanar photoconducting structure; equivalent surface current density; far field radiation; near-to-far-field transformation; sub-picosecond system; terahertz radiation field; Charge carrier processes; Computational modeling; Current density; Electrodes; Electromagnetic coupling; Electromagnetic radiation; Finite difference methods; Gallium arsenide; Sampling methods; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1997., IEEE MTT-S International

Conference_Location

Denver, CO, USA

ISSN

0149-645X

Print_ISBN

0-7803-3814-6

Type

conf

DOI

10.1109/MWSYM.1997.604547

Filename

604547