Analysis and design of a continuous-wave terahertz photoconductive photomixer array source

Author

Saeedkia, Daryoosh ; Mansour, Raafat R. ; Safavi-Naeini, Safieddin

Author_Institution

Electr. & Comput. Eng. Dept., Univ. of Waterloo, Ont., Canada

Volume

53

Issue

12

fYear

2005

Firstpage

4044

Lastpage

4050

Abstract

An array of photoconductive photomixer/antenna elements as a continuous-wave terahertz source is proposed, and its radiation characteristic is studied. Employing photomixer/antenna elements in an array configuration increases available terahertz power, while each of the array elements consumes optical power less than its maximum sustainable power. A few microwatt terahertz power is achievable from a typical array structure. It is shown that the radiated beam can be steered by changing the angle between the two exciting laser beams.

Keywords

antenna arrays; optoelectronic devices; photoconducting devices; power consumption; submillimetre wave antennas; submillimetre wave mixers; antenna array; antenna element; continuous-wave terahertz source; optical power consumption; optoelectronic; photoconductive photomixer; radiation characteristics; Antenna arrays; Biomedical optical imaging; Frequency; Laser beams; Laser modes; Optical arrays; Optical mixing; Optical receivers; Optical variables control; Photoconductivity; Continuous-wave terahertz sources; photomixers; terahertz antenna array; terahertz optoelectronics; ultrafast photoconductors;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2005.859909

Filename

1549986