Title :
Terahertz radiation from log-periodic antennas
Author :
Saijo, H. ; Morimoto, M. ; Yamashita, M. ; Tonouchi, M. ; Hangyo, M.
Author_Institution :
Res. Center for Supercond. Mater. & Electron., Osaka Univ., Japan
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
Terahertz (THz) radiation from high-T/sub c/ superconductors excited with femtosecond optical pulses has opened a new research field in microwave photonics. Previously, we reported the radiation from YBCO dipole and bowtie antennas with powers of sub-/spl mu/W. In the present work, we study the radiation from a YBCO log-periodic antenna.
Keywords :
barium compounds; high-temperature superconductors; log periodic antennas; microwave photonics; planar antenna arrays; submillimetre wave antennas; superconducting arrays; superconducting microwave devices; superconducting thin films; transmitting antennas; yttrium compounds; THz radiation; YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta//; YBa/sub 2/Cu/sub 3/O/sub 7/; bowtie antennas; dipole antennas; femtosecond optical pulses; high-T/sub c/ superconductors; log-periodic antenna; log-periodic antennas; microwave photonics; radiation; research field; terahertz radiation; Dipole antennas; Frequency; Laser excitation; Laser mode locking; Lenses; Log periodic antennas; Optical pulses; Polarization; Substrates; Yttrium barium copper oxide;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.811515
