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Acta Optica Sinica, Volume. 38, Issue 12, 1219001(2018)

Influence of Intensity Ratio of Two-Beam Pulses on Atomic Ionization and High Harmonic Generation in Non-Symmetric Polarization Control Scheme

Hao Song**, Ning Su, and Gao Chen*
Author Affiliations
  • School of Science, Changchun University of Science and Technology, Changchun, Jilin 130022, China
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    Figures & Tables(8)
    Three dimensional diagrams for total electric field, gating field and driving field in polarization gating pulse as a function of time. (a) θ=arccot 2; (b) θ=arccot 1; (c) θ=arccot(1/2)

    Fig. 1. Three dimensional diagrams for total electric field, gating field and driving field in polarization gating pulse as a function of time. (a) θ=arccot 2; (b) θ=arccot 1; (c) θ=arccot(1/2)

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    Electric field of driving pulse, ellipticity and atomic ionization probability as functions of time. (a)-(c) Within the whole pulse; (d)-(f) within polarization gate

    Fig. 2. Electric field of driving pulse, ellipticity and atomic ionization probability as functions of time. (a)-(c) Within the whole pulse; (d)-(f) within polarization gate

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    High harmonic emission power spectra at different polarization angles

    Fig. 3. High harmonic emission power spectra at different polarization angles

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    Electric field of driving pulse, ellipticity and atomic ionization probability as functions of time. (a)-(c) Within the whole pulse; (d)-(f) within polarization gate

    Fig. 4. Electric field of driving pulse, ellipticity and atomic ionization probability as functions of time. (a)-(c) Within the whole pulse; (d)-(f) within polarization gate

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    High harmonic emission power spectra at different polarization angles

    Fig. 5. High harmonic emission power spectra at different polarization angles

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    (a) High harmonic spectra at different polarization angles; (b) time-domain plots of isolated attosecond pulses

    Fig. 6. (a) High harmonic spectra at different polarization angles; (b) time-domain plots of isolated attosecond pulses

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    Electric field of driving pulse within polarization gate as a function of time

    Fig. 7. Electric field of driving pulse within polarization gate as a function of time

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    • Table 1. Atomic pre-ionization, primary ionization and harmonic order at cutoff position of high harmonic spectrum as functions of intensity ratio of two-beam pulses

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      Table 1. Atomic pre-ionization, primary ionization and harmonic order at cutoff position of high harmonic spectrum as functions of intensity ratio of two-beam pulses

      Polarization angle /(°)Strength ratioAtomic pre-ionization probability /%Primary ionization probability /%Harmonic order at cutoff position
      100.070.11.1303
      150.180.21.8268
      200.330.42.4246
      250.480.83.1229
      300.651.53.7216
      350.792.64.4205
      400.924.45.1195
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    Hao Song, Ning Su, Gao Chen. Influence of Intensity Ratio of Two-Beam Pulses on Atomic Ionization and High Harmonic Generation in Non-Symmetric Polarization Control Scheme[J]. Acta Optica Sinica, 2018, 38(12): 1219001

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    Paper Information

    Category: Nonlinear Optics

    Received: Apr. 11, 2018

    Accepted: Aug. 13, 2018

    Published Online: May. 10, 2019

    The Author Email:

    DOI:10.3788/AOS201838.1219001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology