中国物理B ›› 2017, Vol. 26 ›› Issue (7): 74222-074222.doi: 10.1088/1674-1056/26/7/074222

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

A tunable XUV monochromatic light source based on the time preserving grating selection of high-order harmonic generation

Yong Niu(牛永), Hongjing Liang(梁红静), Yi Liu(刘燚), Fangyuan Liu(刘方圆), Ri Ma(马日), Dajun Ding(丁大军)   

  1. 1 Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
    2 Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University, Changchun 130012, China
  • 收稿日期:2017-03-11 修回日期:2017-05-23 出版日期:2017-07-05 发布日期:2017-07-05
  • 通讯作者: Ri Ma, Dajun Ding E-mail:rma@jlu.edu.cn;dajund@jlu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grants Nos.11627807,11127403,and 11474130),the National Basic Research Program of China (Grant No.2013CB922200),and the Natural Science Foundation of Jilin Province of China (Grant No.20160101332JC).

A tunable XUV monochromatic light source based on the time preserving grating selection of high-order harmonic generation

Yong Niu(牛永)1,2, Hongjing Liang(梁红静)1,2, Yi Liu(刘燚)1,2, Fangyuan Liu(刘方圆)1,2, Ri Ma(马日)1,2, Dajun Ding(丁大军)1,2   

  1. 1 Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
    2 Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University, Changchun 130012, China
  • Received:2017-03-11 Revised:2017-05-23 Online:2017-07-05 Published:2017-07-05
  • Contact: Ri Ma, Dajun Ding E-mail:rma@jlu.edu.cn;dajund@jlu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grants Nos.11627807,11127403,and 11474130),the National Basic Research Program of China (Grant No.2013CB922200),and the Natural Science Foundation of Jilin Province of China (Grant No.20160101332JC).

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摘要： We accomplish a laboratory facility for producing a femtosecond XUV coherent monochromatic radiation with a broad tunable spectral range of 20 eV–75 eV. It is based on spectral selected single-order harmonics from intense laser driven high harmonic generation in gas phase. The time preserving for the selected harmonic radiation is achieved by a Czerny–Turner type monochromator designed with a conical diffraction grating mount for minimizing the time broadening caused by grating diffraction and keeping a relatively high diffraction efficiency. Our measurement shows that the photon flux of the 23-order harmonic (H23) centered at 35.7 eV is 1×109 photons/s approximately with a resolving power E/ΔE≈36. This source provides an ultrashort tunable monochromatic XUV beam for ultrafast studies of electronic and structural dynamics in a large variety of matters.

关键词: high harmonic generation, conical diffraction, time preserving monochromator, femtosecond extreme ultraviolet pulse

Abstract: We accomplish a laboratory facility for producing a femtosecond XUV coherent monochromatic radiation with a broad tunable spectral range of 20 eV–75 eV. It is based on spectral selected single-order harmonics from intense laser driven high harmonic generation in gas phase. The time preserving for the selected harmonic radiation is achieved by a Czerny–Turner type monochromator designed with a conical diffraction grating mount for minimizing the time broadening caused by grating diffraction and keeping a relatively high diffraction efficiency. Our measurement shows that the photon flux of the 23-order harmonic (H23) centered at 35.7 eV is 1×109 photons/s approximately with a resolving power E/ΔE≈36. This source provides an ultrashort tunable monochromatic XUV beam for ultrafast studies of electronic and structural dynamics in a large variety of matters.

Key words: high harmonic generation, conical diffraction, time preserving monochromator, femtosecond extreme ultraviolet pulse

中图分类号:  (Frequency conversion; harmonic generation, including higher-order harmonic generation)

  • 42.65.Ky
42.65.Re (Ultrafast processes; optical pulse generation and pulse compression) 32.80.Rm (Multiphoton ionization and excitation to highly excited states) 32.80.Wr (Other multiphoton processes)