TY  - JOUR
AU  - Wirth, Adrian
AU  - Hassan, M. T.
AU  - Grguras, Ivanka
AU  - Gagnon, J.
AU  - Moulet, A.
AU  - Luu, T. T.
AU  - Pabst, Stefan
AU  - Santra, Robin
AU  - Alahmed, Z. A.
AU  - Azzeer, A. M.
AU  - Yakovlev, V. S.
AU  - Pervak, V.
AU  - Krausz, F.
AU  - Goulielmakis, E.
AU  - DESY
TI  - Synthesized Light Transients
JO  - Science
VL  - 334
SN  - 0036-8075
M1  - PHPPUBDB-17976
SP  - 195
PY  - 2011
AB  - Manipulation of electron dynamics calls for electromagnetic forces that can be confined to and controlled over sub-femtosecond time intervals. Tailored transients of light fields can provide these forces. We report on the generation of subcycle field transients spanning the infrared, visible, and ultraviolet frequency regimes with a 1.5-octave three-channel optical field synthesizer and their attosecond sampling. To demonstrate applicability, we field-ionized krypton atoms within a single wave crest and launched a valence-shell electron wavepacket with a well-defined initial phase. Half-cycle field excitation and attosecond probing revealed fine details of atomic-scale electron motion, such as the instantaneous rate of tunneling, the initial charge distribution of a valence-shell wavepacket, the attosecond dynamic shift (instantaneous ac Stark shift) of its energy levels, and its few-femtosecond coherent oscillations.
LB  - PUB:(DE-HGF)16
C6  - pmid:21903778
UR  - <Go to ISI:>//WOS:000295833600038
DO  - DOI:10.1126/science.1210268
UR  - https://bib-pubdb1.desy.de/record/94718
ER  -