Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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The Real-Time Temporal and Spatial Diagnostics of Ultrashort High-Power Laser Pulses using an All-Reflective Single-Shot Autocorrelator

  • Kim, Ha-Na (Center for Quantum-Beam-based Radiation Research, Korea Atomic Energy Research Institute) ;
  • Park, Seong Hee (Center for Quantum-Beam-based Radiation Research, Korea Atomic Energy Research Institute) ;
  • Kim, Kyung Nam (Center for Quantum-Beam-based Radiation Research, Korea Atomic Energy Research Institute) ;
  • Han, Byungheon (Center for Quantum-Beam-based Radiation Research, Korea Atomic Energy Research Institute) ;
  • Shin, Jae Sung (Quantum Optics Division, Korea Atomic Energy Research Institute) ;
  • Lee, Kitae (Center for Quantum-Beam-based Radiation Research, Korea Atomic Energy Research Institute) ;
  • Cha, Yong-Ho (Quantum Optics Division, Korea Atomic Energy Research Institute) ;
  • Jang, Kyu-Ha (Center for Quantum-Beam-based Radiation Research, Korea Atomic Energy Research Institute) ;
  • Jeon, Min Yong (Department of Physics, Chungnam National University) ;
  • Miginsky, Sergei V. (Center for Quantum-Beam-based Radiation Research, Korea Atomic Energy Research Institute) ;
  • Jeong, Young Uk (Center for Quantum-Beam-based Radiation Research, Korea Atomic Energy Research Institute) ;
  • Vinokurov, Nikolay A. (Center for Quantum-Beam-based Radiation Research, Korea Atomic Energy Research Institute)
  • Received : 2014.06.19
  • Accepted : 2014.07.18
  • Published : 2014.08.25
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Abstract

An all-reflective, simple noncollinear second harmonic (SH) autocorrelator is described for monitoring the shot-to-shot behavior of ultrashort high-power laser pulses. Two mirrors are used for the dispersion-free splitting of a pulse into two halves. One of the mirrors is able to adjust the delay time and angle between two halves of the laser pulse in a nonlinear crystal. We present the possibility of real-time measurement of the pulse duration, peak intensity (or energy), and the pointing jitters of a laser pulse, by analyzing the spatial profile of the SH autocorrelation signal measured by a CCD camera. The measurement of the shot-to-shot variation of those parameters will be important for the detailed characterization of laser accelerated electrons or protons.

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References

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