Title :
Plasmonic photoconductive terahertz emitters based on logarithmic spiral antenna arrays
Author :
Berry, Christopher W. ; Hashemi, Mohammed R. ; Jarrahi, Mona
Author_Institution :
Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
We present an efficient photoconductive terahertz emitter based on a logarithmic spiral antenna array that incorporates plasmonic contact electrodes on a LT-GaAs substrate. Under a 400 mW optical pump power, the emitter generates 1.9 mW of terahertz radiation in the 0.1 - 2 THz range.
Keywords :
antenna arrays; electrodes; photoconducting devices; plasmonics; spiral antennas; logarithmic spiral antenna arrays; optical pump power; plasmonic contact electrodes; plasmonic photoconductive terahertz emitters; terahertz radiation; Antenna arrays; Electrodes; Optical arrays; Optical attenuators; Optical pumping; Plasmons; Stimulated emission;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665607
