Title :
Ultraviolet light emission from resonant gold dipole antennas in air illuminated with intense sub-picosecond terahertz transients
Author :
Iwaszczuk, K. ; Zalkovskij, Maksim ; Strikwerda, Andrew C. ; Jepsen, Peter Uhd
Author_Institution :
Dept. of Photonics Eng., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
We experimentally show that metallic dipole antennas emit ultraviolet radiation when illuminated with ultrashort high-power terahertz pulses due to ultrafast electron field emission from the metal and consecutive ionization and excitation of atmospheric gas molecules.
Keywords :
dipole antennas; electron field emission; high-speed optical techniques; ionisation; atmospheric gas molecules; intense subpicosecond terahertz transients; ionization; metallic dipole antennas; resonant gold dipole antennas; ultrafast electron field emission; ultrashort high power terahertz pulses; ultraviolet light emission; ultraviolet radiation; Dipole antennas; Electric fields; Metals; Physics; Resonant frequency; Transient analysis;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956349
