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APS » Journals » Phys. Rev. Lett. » Volume 56 » Issue 24
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Phys. Rev. Lett. 56, 2590–2593 (1986)

Suppression of Multiphoton Ionization with Circularly Polarized Coherent Light

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P. H. Bucksbaum, M. Bashkansky*, R. R. Freeman, and T. J. McIlrath†
AT&T Bell Laboratories, Murray Hill, New Jersey 07974

L. F. DiMauro
Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803

Received 25 February 1986; published in the issue dated 16 June 1986

Multiphoton ionization in xenon has been studied with 1064-nm circularly polarized coherent light, producing electrons with energies up to 15 eV. A strong suppression of the cross section is observed for electrons below 4 eV, but not for linearly polarized light at the same intensity. We show that if the electrons are emitted in single-step, nonresonant coherent processes, rather than stepwise excitation, the centrifugal potential barrier in the atomic Hamiltonian produces this suppression.

© 1986 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.56.2590
DOI:
10.1103/PhysRevLett.56.2590
PACS:
32.80.Rm

*Also at Physics Department, Columbia University, New York, N.Y. 10027.

†On leave from Institute for Physical Science and Technology, University of Maryland, College Park, Md. 20742.

 
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