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http://dx.doi.org/10.3807/JOSK.2014.18.4.382

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)
Publication Information
Journal of the Optical Society of Korea / v.18, no.4, 2014 , pp. 382-387 More about this Journal
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.
Keywords
Ultrafast lasers; All-reflective single-shot autocorrelator; Single-shot autocorrelator; Pulse-width measurement;
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