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  • Received: Aug. 26, 2019

    Accepted: Nov. 7, 2019

    Posted: Dec. 27, 2019

    Published Online: Dec. 30, 2019

    The Author Email: Jun Liu (jliu@siom.ac.cn)

    DOI: 10.3788/COL202018.021202

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    Zhe Si, Xiong Shen, Jingxin Zhu, Lei Lin, Lihua Bai, Jun Liu. All-reflective self-referenced spectral interferometry for single-shot measurement of few-cycle femtosecond pulses in a broadband spectral range[J]. Chinese Optics Letters, 2020, 18(2): 021202

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Chinese Optics Letters, Vol. 18, Issue 2, 021202 (2020)

All-reflective self-referenced spectral interferometry for single-shot measurement of few-cycle femtosecond pulses in a broadband spectral range

Zhe Si1,2, Xiong Shen2,3, Jingxin Zhu2,3, Lei Lin2,3, Lihua Bai1, and Jun Liu2,3,*

Author Affiliations

  • 1Department of Physics, Shanghai University, Shanghai 200444, China
  • 2State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 3Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Abstract

An all-reflective self-referenced spectral interferometry based on the transient grating (TG) effect is proposed for single-shot measuring of the amplitude and phase of ultrashort pulses in a broadband spectral range. Except for a thin third-order nonlinear medium, which was used to generate the TG signal, no transmitted optics were used in the proposed device, and few-cycle pulses in a broad spectral range from deep UV to mid-IR can be characterized. With a homemade compact and alignment-free device, a 5.0 fs pulse at 800 nm corresponding to about two cycles and a 14.3 fs pulse at 1800 nm corresponding to less than three cycles were successfully characterized.

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