title: A real-time terahertz time-domain polarization analyzer with 80-MHz repetition-rate femtosecond laser pulses.
abstract: We have developed a real-time terahertz time-domain polarization analyzer by using 80-MHz repetition-rate femtosecond laser pulses. Our technique is based on the spinning electro-optic sensor method, which we recently proposed and demonstrated by using a regenerative amplifier laser system; here we improve the detection scheme in order to be able to use it with a femtosecond laser oscillator with laser pulses of a much higher repetition rate. This improvement brings great advantages for realizing broadband, compact and stable real-time terahertz time-domain polarization measurement systems for scientific and industrial applications.
authors.affiliation: Department of Physics, Faculty of Science and Technology, Keio University, Kohoku-ku, Yokohama, Kanagawa, Japan. watanabe@phys.keio.ac.jp
authors.forename: Shinichi
authors.initials: S
authors.lastname: Watanabe
authors.forename: Naoya
authors.initials: N
authors.lastname: Yasumatsu
authors.forename: Kenichi
authors.initials: K
authors.lastname: Oguchi
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Takeda
authors.forename: Takeshi
authors.initials: T
authors.lastname: Suzuki
authors.forename: Takehiro
authors.initials: T
authors.lastname: Tachizaki
mesh_terms: D005336:Fiber Optic Technology; D006801:Humans; D007834:Lasers; D011674:Pulse; D012815:Signal Processing, Computer-Assisted; D055068:Terahertz Spectroscopy