Analytic Description of the High-Energy Plateau in Harmonic Generation by Atoms: Can the Harmonic Power Increase with Increasing Laser Wavelengths?

Authors

M. V. Frolov, Voronezh State University
N. L. Manakov, Voronezh State UniversityFollow
T. S. Sarantseva, Voronezh State University
M. Yu. Emelin, Institute of Applied Physics, Russian Academy of Sciences
M. Yu. Ryabikin, Institute of Applied Physics, Russian Academy of Sciences
Anthony F. Starace, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

6-19-2009

Comments

Published in Physical Review Letters 102, 243901 (June 19, 2009); DOI: 10.1103/PhysRevLett.102.243901 Copyright 2009 American Physical Society. Used by permission. URL: http://link.aps.org/abstract/PRL/v102/e243901
Publisher error corrected 18 June 2009

Abstract

A closed-form analytic formula for high-order harmonic generation (HHG) rates for atoms (that generalizes an HHG formula for negative ions [M.V. Frolov et al., J. Phys. B 42, 035601 (2009)]) is used to study laser wavelength scaling of the HHG yield for harmonic energies in the cutoff region of the HHG plateau. We predict increases of the harmonic power for HHG by Ar, Kr, and Xe with increasing wavelength λ over atom-specific intervals of λ in the infrared region, λ ~ (0.8–2.0) μm.