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Rev Sci Instrum. 2016 Apr;87(4):043114. doi: 10.1063/1.4947257.

Ultrafast single-shot measurement of optical Kerr effect based on supercontinuum pulse.

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Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China.
Department of Physics, Harbin Institute of Technology, Harbin 15001, China.


We present an ultrafast single-shot measurement method for the optical Kerr effect based on a polarization gating technique. The advantages of this single-shot technique are demonstrated via a 26-ps chirped supercontinuum pulse used to measure the optical Kerr effect for three transparent organic liquids. The single-shot measurement results agree well with those of the time-resolved optical Kerr gate method, as regards both time and intensity. This method facilitates real-time observation of ultrafast optical Kerr responses of samples and simultaneous high-time-resolution data acquisition at ∼260 fs. We demonstrate that the single-shot measurement method is potentially a powerful tool for investigating the optical Kerr effects of unstable samples, and for application to high-power laser systems.


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