Publication Date:
2002-07-13
Description:
Photoelectrons excited by extreme ultraviolet or x-ray photons in the presence of a strong laser field generally suffer a spread of their energies due to the absorption and emission of laser photons. We demonstrate that if the emitted electron wave packet is temporally confined to a small fraction of the oscillation period of the interacting light wave, its energy spectrum can be up- or downshifted by many times the laser photon energy without substantial broadening. The light wave can accelerate or decelerate the electron's drift velocity, i.e., steer the electron wave packet like a classical particle. This capability strictly relies on a sub-femtosecond duration of the ionizing x-ray pulse and on its timing to the phase of the light wave with a similar accuracy, offering a simple and potentially single-shot diagnostic tool for attosecond pump-probe spectroscopy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kienberger, R -- Hentschel, M -- Uiberacker, M -- Spielmann, Ch -- Kitzler, M -- Scrinzi, A -- Wieland, M -- Westerwalbesloh, Th -- Kleineberg, U -- Heinzmann, U -- Drescher, M -- Krausz, F -- New York, N.Y. -- Science. 2002 Aug 16;297(5584):1144-8. Epub 2002 Jul 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut fur Photonik, Technische Universitat Wien, Gusshausstr. 27, A-1040 Wien, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12114530" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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