| All-reflective self-referenced spectral interferometry for single-shot measurement of few-cycle femtosecond pulses in a broadband spectral range |
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| 作者姓名： | 司哲 申雄 朱晶鑫 林磊 白丽华 刘军 |
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| 作者单位： | Department of Physics;State Key Laboratory of High Field Laser Physics;Center of Materials Science and Optoelectronics Engineering |
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| 基金项目： | supported by the Natural Science Foundation of Shanghai(No.18ZR1413600);the National Natural Science Foundation of China(NSFC)(Nos.61521093 and 61527821);the Instrument Developing Project of the Chinese Academy of Sciences(No.YZ201538);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB160106);the Shanghai Municipal Science and Technology Major Project(No.2017SHZDZX02). |
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| 摘 要： | 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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| 关 键 词： | transient grating self-referenced spectral INTERFEROMETRY FEW-CYCLE LASER PULSES femtosecond LASER PULSES measurement |
All-reflective self-referenced spectral interferometry for single-shot measurement of few-cycle femtosecond pulses in a broadband spectral range |
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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].中国光学快报(英文版),2020(2):34-38. |
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| Authors: | Zhe Si Xiong Shen Jingxin Zhu Lei Lin Lihua Bai Jun Liu |
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| Institution: | (Department of Physics,Shanghai University,Shanghai 200444,China;State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China) |
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| 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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