Interplay of mulitphoton and tunneling ionization in short-wavelength-driven high-order harmonic generation
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Gkortsas-2011-Interplay of mulitphoton.pdf
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Author(s)
Kaertner, Franz X.
Falcao-Filho, Edilson L.
Gkortsas, Vasileios-Marios
Bhardwaj, Siddharth
Lai, Chien-Jen
Hong, Kyung-Han
Date Issued
July 2011
Journal
Physical Review A
Publisher
American Physical Society
Citation
Gkortsas, Vasileios-Marios et al. “Interplay of mulitphoton and tunneling ionization in short-wavelength-driven high-order harmonic generation.” Physical Review A 84 (2011): n. pag. Web. 17 Nov. 2011. © 2011 American Physical Society
Version
Final published version
Abstract
High-order harmonic generation efficiency is theoretically modeled and compared with experiments using 400 and 800 nm driver pulses. It is shown that, for a short drive wavelength and a Keldysh parameter larger than 1, the Ammosov-Delone-Krainov (ADK) ionization model does not give a good agreement between theory and experiment. Since the ADK ionization model only accounts for tunnel ionization, it underestimates the yield of low-order harmonics from the wings of the driver pulse. In contrast, the Yudin-Ivanov ionization model [ Phys. Rev. A 64 013409 (2001)], which accounts for both tunnel and multiphoton ionization, gives much better agreement with the experimental results.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.84.013427
