Broadband Antenna-Integrated, Edge-Coupled Photomixers for Tuneable Terahertz Sources

Author

Henning, Ian D. ; Adams, Michael J. ; Sun, Yun ; Moodie, David G. ; Rogers, Dave C. ; Cannard, Paul J. ; Dosanjh, Sukhjiban Jeevan ; Skuse, Mark ; Firth, Richard J.

Author_Institution

Sch. of Comput. Sci. & Electron. Eng., Univ. of Essex, Colchester, UK

Volume

46

Issue

10

fYear

2010

Firstpage

1498

Lastpage

1505

Abstract

We present design and experimental results on novel antenna-integrated edge-coupled photodiodes, examining particularly their suitability as photomixers for broadband terahertz sources. We show that a simple “stub” detector positioned at the edge of the chip can yield promising overall performance when integrated with a number of different planar antennas specifically designed for this configuration. Using a slot-horn antenna connected via a coplanar line, we measure terahertz emission figures of 100 μW over the range 100-500 GHz, with 50 μW available at 750 GHz. We also present a novel planar double-horn antenna and show that with suitable use of terahertz “optics” this offers broadband through-substrate emission from 200 GHz to over 1 THz, with 10 μW terahertz power emitted at 1.004 THz.

Keywords

broadband antennas; horn antennas; millimetre wave antennas; photodiodes; planar antennas; slot antennas; strip lines; submillimetre wave antennas; antenna-integrated edge-coupled photodiodes; broadband antenna; coplanar line; edge-coupled photomixers; frequency 1.004 THz; frequency 100 GHz to 500 GHz; planar double-horn antenna; power 10 muW; power 100 muW; power 50 muW; slot-horn antenna; tuneable terahertz sources; Antenna measurements; Broadband antennas; Detectors; Optical waveguides; Silicon; Slot antennas; Photodetectors; photomixer; planar antenna; submillimeter-wave generation;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2010.2052353

Filename

5565361