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This article is cited in 24 scientific papers (total in 24 papers)
Nonlinear optical phenomena
Interference of electron trajectories and generation of high-order optical harmonics in a Coulomb system
V. T. Platonenko Lomonosov Moscow State University, Faculty of Physics
Abstract:
The amplitudes of harmonics of the atomic response are determined as functions of the intensity of the pump light wave within the range of intensities of 4.9×1013 – 2.1×1014 W cm-2 through the numerical solution of the Schrodinger equation for a hydrogen atom in an oscillating electric field. For the amplitudes of harmonics starting from the 5th up to at least the 55th order, these dependences display a deep modulation. Generation of high-order harmonics is analysed within the framework of semiclassical theory including several factors that were ignored in earlier studies. Relatively simple formulas for the amplitudes of high-order harmonics are derived. These formulas agree well with the results of numerical simulations in the range of tunnelling ionisation and provide a satisfactory agreement with numerical simulations in the range of barrier-suppression ionisation.
Received: 11.09.2000
Citation:
V. T. Platonenko, “Interference of electron trajectories and generation of high-order optical harmonics in a Coulomb system”, Kvantovaya Elektronika, 31:1 (2001), 55–60 [Quantum Electron., 31:1 (2001), 55–60]
Linking options:
https://www.mathnet.ru/eng/qe1891 https://www.mathnet.ru/eng/qe/v31/i1/p55
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