A hybrid time-domain model for pulsed terahertz dipole antennas

被引：15

作者：

Ezdi, K. ^{[1
]}

Heinen, B. ^{[1
]}

Joerdens, C. ^{[1
]}

Vieweg, N. ^{[1
]}

Krumbholz, N. ^{[1
]}

Wilk, R. ^{[2
]}

Mikulics, M. ^{[3
]}

Koch, M. ^{[1
]}

机构：

[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Hochfrequenztech, D-38106 Braunschweig, Germany

[2] Menlo Syst GmbH, D-82152 Martinsried, Germany

[3] Forschungszentrum Julich, Inst Bio & Nanosyst, D-52428 Julich, Germany

来源：

JOURNAL OF THE EUROPEAN OPTICAL SOCIETY-RAPID PUBLICATIONS | 2009年 / 4卷

关键词：

pulse-excited antennas; time-domain model; THz time-domain spectroscopy; Drude-Lorentz model; TEMPERATURE-GROWN GAAS; PHOTOCONDUCTIVE ANTENNAS; REFLECTION SPECTROSCOPY; RADIATION; GENERATION; PHOTOMIXERS;

D O I：

10.2971/jeos.2009.09001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper we study the effect of the length of dipole antennas on the spectrum of the radiated THz signal in pulse-excited opto-electronic terahertz systems. In particular, we investigate the origin of the commonly observed sharp dips that occur in the spectra of photoconductive dipole antennas, and explain them on the basis of reflections of the excitation current pulse that take place at the ends of the antenna. We develop a hybrid time-domain model for the system and show that the predictions of our model are in good agreement with experimental results. [DOI: 10.2971/jeos.2009.09001]

引用

页数：7

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