Title :
Characterization of photogenerated terahertz radiation in high-Tc superconductors
Author :
Lin, P.I. ; Wu, K.H. ; Juang, J.Y. ; Lin, J.-Y. ; Uen, T.M. ; Gou, Y.S.
Author_Institution :
Dept. of Electrophys., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
The characteristics of photogenerated terahertz (THz) pulses radiation about 450 fs wide from a current-biased superconducting YBa2Cu3O7-δ (YBCO) bow-tie antenna were investigated using a free-space electro-optic sampling technique. The dynamics of the quasiparticles optically induced by the ultrafast laser pulse primarily determines the performances of the transient THz radiation generated under different operating parameters are discussed.
Keywords :
barium compounds; electro-optical effects; high-speed optical techniques; high-temperature superconductors; quasiparticles; submillimetre wave antennas; submillimetre wave generation; superconducting microwave devices; yttrium compounds; 450 fs; THz radiation; YBCO; YBa2Cu3O7-δ; YBa2Cu3O7-δ bow-tie antenna; free-space electro-optic sampling technique; high-Tc superconductors; photogenerated terahertz pulses; photogenerated terahertz radiation; quasiparticles; ultrafast laser pulse; Electromagnetic radiation; Electromagnetic transients; High temperature superconductors; Optical films; Optical pulse generation; Optical pulses; Stimulated emission; Temperature dependence; Ultrafast optics; Yttrium barium copper oxide;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1277090
