Title :
Sub-terahertz frequency detection using sub-5 fs laser pulses and a photoconductive antenna
Author :
Katayama, Ikufumi ; Chiba, Ryosuke ; Morohashi, Isao ; Irimajiri, Yoshihisa ; Sekine, Norihiko ; Hosako, Iwao ; Ashida, M.
Author_Institution :
Yokohama Nat. Univ., Yokohama, Japan
Abstract :
Sub-5-fs laser pulses and a photoconductive antenna are used to detect the frequency of continuous wave terahertz light sources at 0.1 and 0.6 THz. Both the frequency mixing in a photoconductive antenna and the heterodyne detection at the sub-harmonic mixer can detect the signals of the light source. By slightly changing the frequency of the light source, absolute frequency can be evaluated directly.
Keywords :
heterodyne detection; measurement by laser beam; optical signal detection; photoconducting devices; terahertz wave detectors; continuous wave terahertz light sources; frequency 0.1 THz; frequency 0.6 THz; frequency mixing; heterodyne detection; laser pulses; optical signal detection; photoconductive antenna; subharmonic mixer; subterahertz frequency detection; Antennas; Light sources; Oscillators; Quantum cascade lasers; Resonant frequency; Sensitivity;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956230
