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Haya H Al Muhannadi
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Reconstruction of ionization probabilities from spatially averaged data in N dimensions

Author(s): Strohaber, J (Strohaber, J.); Kolomenskii, AA (Kolomenskii, A. A.); Schuessler, HA (Schuessler, H. A.)

We present an analytical inversion technique, which can be used to recover ionization probabilities from spatially averaged data in an N-dimensional detection scheme. The solution is given as a power series in intensity. For this reason, we call this technique a multiphoton expansion (MPE). The MPE formalism was verified with an exactly solvable inversion problem in two dimensions, and probabilities in the postsaturation region, where the intensity-selective scanning approach breaks down, were recovered. In three dimensions, ionization probabilities of Xe were successfully recovered with MPE from simulated (using the Ammosov-Delone-Krainov tunneling theory) ion yields. Finally, we tested our approach with intensity-resolved benzene-ion yields, which show a resonant multiphoton ionization process. By applying MPE to this data (which were artificially averaged), the resonant structure was recovered, which suggests that the resonance in benzene may have been observed in spatially averaged data taken elsewhere.

Author(s):  Strohaber, J (Strohaber, J.); Kolomenskii, AA (Kolomenskii, A. A.); Schuessler, HA (Schuessler, H. A.)
Source:  PHYSICAL REVIEW A, 82 (1): Art. No. 013403 JUL 6 2010
Language:  English
Document Type:  Article
KeyWords Plus:  MULTIPHOTON IONIZATION; LASER; BENZENE; GASES
Addresses:  [Strohaber, J.; Kolomenskii, A. A.; Schuessler, H. A.] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA
Reprint Address:  Strohaber, J, Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA.
Funding Agency:  Robert A. Welch Foundation - National Science Foundation - Air Force Office of Scientific Research - Qatar National Research Fund
Publisher:  AMER PHYSICAL SOC
Publisher Address:  ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
ISSN:  1050-2947
29-char Source Abbrev.:  PHYS REV A
ISO Source Abbrev.:  Phys. Rev. A
Subject Category:  Optics; Physics, Atomic, Molecular & Chemical
ISI Document Delivery No.:  620YW
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