Shigeki Tokita

Summary

Affiliation: Kyoto University
Country: Japan

Publications

  1. ncbi request reprint Single-shot femtosecond electron diffraction with laser-accelerated electrons: experimental demonstration of electron pulse compression
    Shigeki Tokita
    Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Phys Rev Lett 105:215004. 2010
  2. ncbi request reprint 0.3% energy stability, 100-millijoule-class, Ti:sapphire chirped-pulse eight-pass amplification system
    Shigeki Tokita
    Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Opt Express 16:14875-81. 2008
  3. doi request reprint Stable 10 W Er:ZBLAN fiber laser operating at 2.71-2.88 μm
    Shigeki Tokita
    Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Opt Lett 35:3943-5. 2010
  4. ncbi request reprint Collimated fast electron emission from long wires irradiated by intense femtosecond laser pulses
    Shigeki Tokita
    Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Phys Rev Lett 106:255001. 2011
  5. ncbi request reprint Single-shot microscopic electron imaging of intense femtosecond laser-produced plasmas
    Shunsuke Inoue
    Department of Physics, Graduate School of Science, Kyoto University Kitashirakawa, Sakyo, Kyoto 606 8502, Japan
    Rev Sci Instrum 81:123302. 2010
  6. ncbi request reprint Autocorrelation measurement of fast electron pulses emitted through the interaction of femtosecond laser pulses with a solid target
    Shunsuke Inoue
    Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Phys Rev Lett 109:185001. 2012
  7. doi request reprint 12 W Q-switched Er:ZBLAN fiber laser at 2.8 μm
    Shigeki Tokita
    Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Opt Lett 36:2812-4. 2011
  8. ncbi request reprint Divergence-free transport of laser-produced fast electrons along a meter-long wire target
    Hiroaki Nakajima
    Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan and Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo, Kyoto 606 7501, Japan
    Phys Rev Lett 110:155001. 2013
  9. pmc Strong sub-terahertz surface waves generated on a metal wire by high-intensity laser pulses
    Shigeki Tokita
    1 Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan 2 Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo, Kyoto 606 7501, Japan
    Sci Rep 5:8268. 2015

Collaborators

  • Takeshi Nagashima
  • Shunsuke Inoue
  • Masaki Hashida
  • Shuji Sakabe
  • Hiroaki Nakajima
  • Kazuto Otani
  • Masayasu Hata
  • Hitoshi Sakagami
  • Toshihiro Taguchi
  • Toshihiko Nishoji
  • Shinichiro Masuno

Detail Information

Publications9

  1. ncbi request reprint Single-shot femtosecond electron diffraction with laser-accelerated electrons: experimental demonstration of electron pulse compression
    Shigeki Tokita
    Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Phys Rev Lett 105:215004. 2010
    ..This pulse was used to generate a clear diffraction pattern of a gold crystal in a single shot. This method solves the space-charge problem in ultrafast electron diffraction...
  2. ncbi request reprint 0.3% energy stability, 100-millijoule-class, Ti:sapphire chirped-pulse eight-pass amplification system
    Shigeki Tokita
    Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Opt Express 16:14875-81. 2008
    ..3% was achieved, which was 5 times lower than that of the pump laser. This is the lowest pulse-to-pulse fluctuation, to the best of our knowledge, obtained by the 100-mJ-class Ti:sapphire amplifiers...
  3. doi request reprint Stable 10 W Er:ZBLAN fiber laser operating at 2.71-2.88 μm
    Shigeki Tokita
    Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Opt Lett 35:3943-5. 2010
    ..The total tunability range for various pump power levels was 170 nm (2710 to 2880 nm). To our knowledge, this is the highest performance (output power and tunability) obtained from a tunable 3 μm fiber laser...
  4. ncbi request reprint Collimated fast electron emission from long wires irradiated by intense femtosecond laser pulses
    Shigeki Tokita
    Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Phys Rev Lett 106:255001. 2011
    ..Numerical simulations reveal that the electrons are trapped by the transient electric field surrounding the wire and guided along the axial direction...
  5. ncbi request reprint Single-shot microscopic electron imaging of intense femtosecond laser-produced plasmas
    Shunsuke Inoue
    Department of Physics, Graduate School of Science, Kyoto University Kitashirakawa, Sakyo, Kyoto 606 8502, Japan
    Rev Sci Instrum 81:123302. 2010
    ..These results show that laser-plasma electron imaging is promising for studying the interactions of femtosecond lasers with high-density plasmas...
  6. ncbi request reprint Autocorrelation measurement of fast electron pulses emitted through the interaction of femtosecond laser pulses with a solid target
    Shunsuke Inoue
    Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Phys Rev Lett 109:185001. 2012
    ..Numerical modeling of three-dimensional charged particle dynamics indicates that the emission duration of fast electrons is almost equal to the duration of the laser pulse...
  7. doi request reprint 12 W Q-switched Er:ZBLAN fiber laser at 2.8 μm
    Shigeki Tokita
    Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan
    Opt Lett 36:2812-4. 2011
    ..Pulse energy up to 100 μJ and pulse duration down to 90 ns, corresponding to a peak power of 0.9 kW, were achieved at a repetition rate of 120 kHz...
  8. ncbi request reprint Divergence-free transport of laser-produced fast electrons along a meter-long wire target
    Hiroaki Nakajima
    Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan and Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo, Kyoto 606 7501, Japan
    Phys Rev Lett 110:155001. 2013
    ..Numerical simulations suggest that a relatively weak steady electric field, which does not decay for several nanoseconds, is generated around the wire and plays a key role in the long-distance guidance...
  9. pmc Strong sub-terahertz surface waves generated on a metal wire by high-intensity laser pulses
    Shigeki Tokita
    1 Advanced Research Center for Beam Science, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611 0011, Japan 2 Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa, Sakyo, Kyoto 606 7501, Japan
    Sci Rep 5:8268. 2015
    ..The peak electric field strength of the surface wave and the pulse duration are estimated to be 200 MV/m and 7 ps, respectively. ..