Abstract
Waveform control of three kinds of chirped pulses (i.e. βt, βt 2 and βt 3) to produce harmonic spectra and attosecond pulses has been investigated. It is found that by properly choosing the chirps, the chirp delays and the other laser parameters, not only the instantaneous frequency of some specific half profiles can be decreased, but also its intensity can be increased. As a result, the free electron can receive more energy when it accelerates in these regions, thus leading to the extension of the harmonic cutoff and harmonic plateau. Finally, through the Fourier transformation of the harmonic spectra and by superposing some harmonics, three single attosecond pulses with the durations of 30 as, 33 as and 39 as can be obtained.
Funding source: Natural Science Foundation of Liaoning Province
Award Identifier / Grant number: 2019-MS-167
Funding source: Basic Research Project of Liaoning Provincial Education Department
Award Identifier / Grant number: JJL201915405
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Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This work was supported by Natural Science Foundation of Liaoning Province, China (Grant No. 2019-MS-167) and Basic Research Project of Liaoning Provincial Education Department (Grant No. JJL201915405).
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2021 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Atomic, Molecular & Chemical Physics
- Chirp waveform control to produce broad harmonic plateau and single attosecond pulse
- Dynamical Systems & Nonlinear Phenomena
- Ion-acoustic stable oscillations, solitary, periodic and shock waves in a quantum magnetized electron–positron–ion plasma
- Nonlinear forced vibration of rotating composite laminated cylindrical shells under hygrothermal environment
- Vibration characteristics and stable region of a parabolic FGM thin-walled beam with axial and spinning motion
- Hydrodynamics
- Curvilinear flow of micropolar fluid with Cattaneo–Christov heat flux model due to oscillation of curved stretchable sheet
- Quantum Theory
- Accuracy of the typicality approach using Chebyshev polynomials
- Solid State Physics & Materials Science
- Impact of Sn ions on structural and electrical description of TiO2 nanoparticles
- The effect of non-bridging oxygen on the electrical transport of some lead borate glasses containing cobalt
- Thermodynamics & Statistical Physics
- Analytical solution for unsteady adiabatic and isothermal flows behind the shock wave in a rotational axisymmetric mixture of perfect gas and small solid particles
Articles in the same Issue
- Frontmatter
- Atomic, Molecular & Chemical Physics
- Chirp waveform control to produce broad harmonic plateau and single attosecond pulse
- Dynamical Systems & Nonlinear Phenomena
- Ion-acoustic stable oscillations, solitary, periodic and shock waves in a quantum magnetized electron–positron–ion plasma
- Nonlinear forced vibration of rotating composite laminated cylindrical shells under hygrothermal environment
- Vibration characteristics and stable region of a parabolic FGM thin-walled beam with axial and spinning motion
- Hydrodynamics
- Curvilinear flow of micropolar fluid with Cattaneo–Christov heat flux model due to oscillation of curved stretchable sheet
- Quantum Theory
- Accuracy of the typicality approach using Chebyshev polynomials
- Solid State Physics & Materials Science
- Impact of Sn ions on structural and electrical description of TiO2 nanoparticles
- The effect of non-bridging oxygen on the electrical transport of some lead borate glasses containing cobalt
- Thermodynamics & Statistical Physics
- Analytical solution for unsteady adiabatic and isothermal flows behind the shock wave in a rotational axisymmetric mixture of perfect gas and small solid particles