Efficient THz-emitters for low-temperature-grown GaAs photomixers

Author

Sydlo, C. ; Sigmund, J. ; Hartnagel, H.L. ; Loata, G. ; Siebert, K.J. ; Roskos, H.G.

Author_Institution

Inst. of Microwave Eng., Darmstadt Univ. of Technol., Germany

fYear

2002

fDate

2002

Firstpage

60

Lastpage

62

Abstract

Different design techniques have been applied to low-temperature grown (LT-) GaAs photomixers and the respective antennas to increase the efficiency and output power of these devices. High DC-photocurrents have been achieved with interdigitated structures and transmission lines have been used to improve matching between antenna and photomixer. The input impedances of antenna structures on GaAs substrate have been investigated and optimised for matching and technological feasibility.

Keywords

III-V semiconductors; gallium arsenide; microwave photonics; photoresistors; submillimetre wave generation; DC-photocurrents; GaAs; antenna structures; efficiency; input impedances; interdigitated structures; low-temperature-grown materials; output power; photomixers; photoresistor; terahertz emitters; Biomembranes; Conductivity; Fingers; Gallium arsenide; Impedance; Molecular beam epitaxial growth; Photoconductivity; Power transmission lines; Substrates; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Terahertz Electronics Proceedings, 2002. IEEE Tenth International Conference on

Print_ISBN

0-7803-7630-7

Type

conf

DOI

10.1109/THZ.2002.1037589

Filename

1037589