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|Title:||The interaction of excited atoms and few-cycle laser pulses|
|Citation:||Scientific Reports, 2016; 6|
|Publisher:||NATURE PUBLISHING GROUP|
|J.E. Calvert, Han Xu, A.J. Palmer, R.D. Glover, D.E. Laban, X.M. Tong, A.S. Kheifets, K. Bartschat, I.V. Litvinyuk, D. Kielpinski, R.T. Sang|
|Abstract:||This work describes the first observations of the ionisation of neon in a metastable atomic state utilising a strong-field, few-cycle light pulse. We compare the observations to theoretical predictions based on the Ammosov-Delone-Krainov (ADK) theory and a solution to the time-dependent Schrödinger equation (TDSE). The TDSE provides better agreement with the experimental data than the ADK theory. We optically pump the target atomic species and measure the ionisation rate as the a function of different steady-state populations in the fine structure of the target state which shows significant ionisation rate dependence on populations of spin-polarised states. The physical mechanism for this effect is unknown.|
|Rights:||© The Author(s) 2016 This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/|
|Appears in Collections:||Aurora harvest 4|
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