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Your search keyword '"Hagstotz, Steffen"' showing total 2 results
Start Over Author "Hagstotz, Steffen" Publication Type Conference Materials
2 results on '"Hagstotz, Steffen"'

1. Time-resolved spectroscopy of doubly-excited states in helium.

Author

Ott, Christian, Kaldun, Andreas, Raith, Philipp, Meyer, Kristina, Laux, Martin, Zhang, Yizhu, Hagstotz, Steffen, Ding, Thomas, Heck, Robert, and Pfeifer, Thomas

Subjects
HELIUM, TIME-resolved spectroscopy, EXCITED states, WAVE packets, FEMTOSECOND lasers, ELECTRONS, TIME delay systems
Abstract

A two-electron wave packet among the lowest-lying doubly-excited states in helium is experimentally observed. It creates a 1-femtosecond modulation in the transient-absorption signal modified by a time-delayed coupling laser [ABSTRACT FROM AUTHOR]

Published
2013
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2. Ponderomotive dressing of doubly-excited states with intensity-controlled laser light.

Author

Ott, Christian, Kaldun, Andreas, Raith, Philipp, Meyer, Kristina, Laux, Martin, Zhang, Yizhu, Hagstotz, Steffen, Ding, Thomas, Heck, Robert, and Pfeifer, Thomas

Subjects
PONDEROMOTIVE force, LASER research, HELIUM, ELECTRONS, COUPLING schemes, LASER interferometers
Abstract

We laser-dress several doubly-excited states in helium. Tuning the couplinglaser intensity from perturbative to the strong-coupling regime, we are able to measure phases imprinted on the two-electron wavefunctions, and observe a new continuum coupling mechanism. [ABSTRACT FROM AUTHOR]

Published
2013
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