Large-aperture THz emitter with interdigitated electrodes

Author

Hattori, T. ; Egawa, K. ; Sakamoto, M.S. ; Ookuma, S. ; Rungsawang, R. ; Itatani, T.

Author_Institution

Inst. of Appl. Phys., Tsukuba Univ., Ibaraki, Japan

Volume

2

fYear

2005

fDate

19-23 Sept. 2005

Firstpage

457

Abstract

We fabricated a large-aperture microstructured THz antenna array composed of seven units of 1-cm² photoconductive antennas having interdigitated electrodes with 10-μm lines and spaces on a semi-insulating GaAs substrate. By illuminating it with amplified femtosecond optical pulses, a large THz field comparable to that from conventional large-aperture emitters was obtained at a bias voltage as low as 30 V.

Keywords

III-V semiconductors; aperture antennas; electrodes; gallium arsenide; millimetre wave antenna arrays; photoconducting materials; submillimetre wave antennas; 10 micron; GaAs; femtosecond optical pulses; interdigitated electrodes; large-aperture emitter; photoconductive antennas; submillimetre wave antenna; terahertz antenna array; terahertz emitter; Antenna arrays; Broadband antennas; Electrodes; Gallium arsenide; Laser excitation; Optical pulses; Photoconductivity; Pulse amplifiers; Space technology; Surface emitting lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on

Print_ISBN

0-7803-9348-1

Type

conf

DOI

10.1109/ICIMW.2005.1572610

Filename

1572610