Title :
Terahertz radiation through ultrafast depolarization in multiferroic BiFeO3 thin films
Author :
Tonouchi, Masayoshi ; Takahashi, Kouhei ; Kida, Noriaki
Author_Institution :
Inst. of Laser Eng., Osaka Univ., Suita
Abstract :
A novel terahertz radiation characteristics is observed a from photoconductive switch fabricated on a multiferroic BiFeO3 thin film via an ultrafast depolarization triggered upon excitation with illumination of femtosecond laser pulses.
Keywords :
bismuth compounds; dielectric depolarisation; ferroelectric thin films; high-speed optical techniques; magnetic thin film devices; multiferroics; photoconducting switches; submillimetre wave generation; BiFeO3; carrier excitation; femtosecond laser pulse illumination; multiferroic thin films; photoconductive switch fabrication; terahertz radiation; ultrafast depolarization; Laser excitation; Lighting; Optical films; Optical pulses; Photoconductivity; Pulsed laser deposition; Switches; Temperature; Ultrafast electronics; Ultrafast optics; (310.6860); (320.7080); (320.7130);
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4629113
