Threshold-related effects in high-order harmonic generation

Authors

Bogdan Borca, Institute for Space Sciences, Bucharest, Romania
Anthony F. Starace, University of Nebraska-LincolnFollow
A. V. Flegel, Voronezh State University, Voronezh, Russia
M. V. Frolov, Voronezh State University, Voronezh, Russia
N. L. Manakov, Voronezh State UniversityFollow

Document Type

Article

Date of this Version

5-9-2002

Comments

Published in Physical Review A 65, 051402 (2002). Copyright © 2002 The American Physical Society. Used by permission.
URL: http://link.aps.org/abstract/PRA/v65/e051402
doi:10.1103/PhysRevA.65.051402

Abstract

We present exact ab initio quantum results for harmonic generation (HG) by a weakly bound electron interacting with a strong monochromatic laser field. The analytic structure of the HG amplitude resulting from the multiphoton detachment thresholds is demonstrated. Our numerical results show that the HG spectrum is sensitive primarily to the distance in energy from the thresholds, thereby opening new possibilities for control of HG.