Ultrabroadband photoconductive sampling of THz radiation with 15 fs laser pulses

Author

Tani, Masahiko ; Kono, Shunsuke ; Sakai, Kiyomi

Author_Institution

Commun. Res. Lab., Minist. of Posts & Telecommun., Kobe, Japan

Volume

1

fYear

2000

fDate

2000

Firstpage

183

Abstract

We report on ultrabroadband detection of THz radiation by using a low-temperature-grown (LT) GaAs photoconducting (PC) antenna gated with 15-fs laser pulses. The detected radiation frequency exceeded 20 THz. This is the highest frequency detected with PC antennas reported so far. A mode-locked Ti:sapphire laser generated 12-fs laser pulses with 75-MHz repetition rate

Keywords

III-V semiconductors; antennas; gallium arsenide; high-speed optical techniques; laser mode locking; measurement by laser beam; photoconducting devices; submillimetre wave detectors; 15 fs; GaAs; GaAs photoconducting antenna; MHz repetition rate; THz radiation; detected radiation frequency; fs laser pulses; low-temperature-grown; mode-locked Ti:sapphire laser; ultrabroadband detection; ultrabroadband photoconductive sampling; Frequency; Laser excitation; Laser mode locking; Optical pulse generation; Optical pulses; Photoconductivity; Pump lasers; Radiation detectors; Sampling methods; Surface emitting lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE

Conference_Location

Rio Grande

ISSN

1092-8081

Print_ISBN

0-7803-5947-X

Type

conf

DOI

10.1109/LEOS.2000.890736

Filename

890736