Fractal Structures for THz Radiation Emitters

Author

Maraghechi, P. ; Elezzabi, A.Y.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada

Volume

19

Issue

1

fYear

2013

fDate

Jan.-Feb. 2013

Firstpage

8400310

Lastpage

8400310

Abstract

We present a review on a special class of photoconductive (PC) terahertz (THz) dipole emitters based on fractal geometry. A comprehensive study of these superior THz antenna designs that are able to emit higher THz radiation power and detect lower THz radiation signal levels than the traditional THz PC antennas is performed. It is shown that the presented fractal PC THz emitters operate in a plasmonic regime. This concept is applicable to all fractal geometries such as Sierpinski and Apollonian fractals. In addition, the effect of self-similar geometry on radiation properties of fractal PC THz emitters is presented.

Keywords

dipole antennas; fractal antennas; microwave antennas; microwave photonics; photoconducting devices; plasmonics; terahertz wave detectors; THz antenna designs; THz radiation emitters; THz radiation power; THz radiation signal levels; fractal PC THz emitters; fractal geometry; fractal structures; photoconductive terahertz dipole emitters; plasmonic regime; radiation properties; self-similar geometry; Dipole antennas; Fractal antennas; Fractals; Plasmons; Substrates; Fractal antennas; photoconductive (PC) switches; terahertz (THz); terahertz radiation;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/JSTQE.2012.2198196

Filename

6196168