Title :
Terahertz optoelectronics in high-Tc superconductors
Author :
Sakai, Kenji ; Tani, Motoaki ; Hangyo, M. ; Tonouchi, Masayoshi
Author_Institution :
Commun. Res. Lab., Minist. of Posts & Telecommun., Hyogo, Japan
Abstract :
Summary form only given. In a series of papers, we have shown that the terahertz (THz) radiation is emitted from current biased, magnetic-field applied and magnetic-flux trapped superconducting YBCO films as well as the semiconductor photoconductive switch with the irradiation of femtosecond (fs) laser pulses. We reported the phenomena at CLEO/IQEC ´98. In the paper, we propose and demonstrate two applications of the phenomena; mapping of supercurrent distribution and magnetic-flux trap memory.
Keywords :
barium compounds; high-temperature superconductors; magnetic flux; optoelectronic devices; superconducting devices; superconducting thin films; thin film devices; yttrium compounds; YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// films; YBa/sub 2/Cu/sub 3/O/sub 7/; current biased superconducting films; femtosecond laser pulses; high-Tc superconductors; magnetic-field applied superconducting films; magnetic-flux trap memory; magnetic-flux trapped superconducting films; semiconductor photoconductive switch; supercurrent distribution; terahertz optoelectronics; terahertz radiation; High temperature superconductors; Magnetic films; Magnetic semiconductors; Magnetic switching; Photoconducting devices; Semiconductor films; Superconducting films; Superconducting magnets; Switches; Yttrium barium copper oxide;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-595-1
DOI :
10.1109/CLEO.1999.834319
