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APS » Journals » Phys. Rev. Lett. » Volume 84 » Issue 17
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Phys. Rev. Lett. 84, 3791–3794 (2000)

Above-Threshold Ionization by an Elliptically Polarized Field: Interplay between Electronic Quantum Trajectories

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G. G. Paulus, F. Grasbon, A. Dreischuh*, and H. Walther†
Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany

R. Kopold and W. Becker‡
Max-Born-Institut, 12489 Berlin, Germany

Received 9 December 1999; published in the issue dated 24 April 2000

Measurements of energy-resolved angular distributions of electrons generated in above-threshold ionization of rare gases in a field with elliptical polarization are presented, with emphasis on the high-energy part of the spectra. The data show a second plateau at a specific angle with respect to the large component of the laser field. The results are compared to a calculation based on a strong-field rescattering approximation. This is interpreted in terms of the superposition of quantum trajectories. The second plateau is associated with the interference of electrons that do and that do not rescatter.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.84.3791
DOI:
10.1103/PhysRevLett.84.3791
PACS:
32.80.Rm

*Permanent address: Sofia University, Dept. of Quant. Elect., 5 J. Bourchier Blvd., BG-1164 Sofia, Bulgaria.

†Also at Sektion Physik der Ludwig-Maximilians-Univ. München, Am Coulombwall 1, 85747 Garching, Germany.

‡Also at Center for Advanced Studies, Dept. of Phys. and Astr., Univ. of New Mexico, Albuquerque, NM 87131.

 
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