Propagation Characteristics of the Terahertz Pulse in the Free Space

Author

Zhou, Weihui ; Zhang, Yan

Author_Institution

Capital Normal Univ., Beijing

fYear

2006

fDate

18-22 Sept. 2006

Firstpage

562

Lastpage

562

Abstract

In this work, characteristics of the propagation behavior of the terahertz (THz) pulse in the free space are presented by numerical simulations. The algorithm is based on the angular spectrum theory. The spatiotemporal coupling of the THz pulse during propagation results in a significantly time dependent beam diameter and wave front. The two dimensional dynamic evolution of the THz pulse passing through an aperture is obtained. The diffraction is time dependent as the pulse travels through the aperture, which can be clearly observed in simulations.

Keywords

electromagnetic coupling; electromagnetic pulse; electromagnetic wave diffraction; spatiotemporal phenomena; submillimetre wave propagation; angular spectrum theory; circular aperture; diffraction pattern; free space; numerical simulation; propagation characteristics; spatiotemporal coupling; terahertz pulse; Frequency; Optical diffraction; Optical imaging; Optical propagation; Optical pulses; Optimized production technology; Pulse measurements; Space technology; Submillimeter wave propagation; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on

Conference_Location

Shanghai

Print_ISBN

1-4244-0400-2

Electronic_ISBN

1-4244-0400-2

Type

conf

DOI

10.1109/ICIMW.2006.368770

Filename

4222504