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Two-photon excitation and relaxation of the 3d-4d resonance in atomic Kr

Meyer, M. and Cubaynes, D. and Richardson, Vincent and Costello, John T. and Radcliffe, P. and Li, W. B. and Düsterer, S. and Fritzsche, S. and Mihelic, A. and Papamihail, K. G. and Lambropoulos, P. (2010) Two-photon excitation and relaxation of the 3d-4d resonance in atomic Kr. Physical Review Letters, 104 (21). pp. 213001-1. ISSN 0031-9007

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Abstract

Two-photon excitation of a single-photon forbidden Auger resonance has been observed and investigated using the intense extreme ultraviolet radiation from the free electron laser in Hamburg. At the wavelength 26.9 nm (46 eV) two photons promoted a 3d core electron to the outer 4d shell. The subsequent Auger decay, as well as several nonlinear above threshold ionization processes, were studied by electron spectroscopy. The experimental data are in excellent agreement with theoretical predictions and analysis of the underlying multiphoton processes.

Item Type:Article (Published)
Refereed:Yes
Subjects:Physical Sciences > Physics
DCU Faculties and Centres:Research Initiatives and Centres > National Centre for Plasma Science and Technology (NCPST)
DCU Faculties and Schools > Faculty of Science and Health > School of Physical Sciences
Publisher:The American Physical Society
Official URL:http://dx.doi.org/10.1103/PhysRevLett.104.213001
Copyright Information:© 2010 The American Physical Society
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Science Foundation Ireland, Irish Research Council for Science Engineering and Technology
ID Code:15652
Deposited On:10 Aug 2010 17:08 by DORAS Administrator. Last Modified 10 Aug 2010 17:08

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