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arXiv · 1007.2258

Sub-Cycle Strong-Field Interferometry

Christian Ott·Philipp Raith·Thomas Pfeifer
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Abstract

A nonlinear interferometry scheme is described theoretically to induce and resolve electron wave- function beating on time scales shorter than the optical cycle of the time-delayed pump and probe pulses. By employing two moderately intense few-cycle laser fields with a stable carrier-envelope phase, a large range of the entire electronic level structure of a quantum system can be retrieved. In contrast to single-photon excitation schemes, the retrieved electronic states include levels that are both dipole- and non-dipole-accessible from the ground electronic state. The results show that strong-field interferometry can reveal both high-resolution and broad-band spectral information at the same time with important consequences for quantum-beat spectroscopy on attosecond or even shorter time scales.

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Christian Ott, Philipp Raith, Thomas Pfeifer. 2010-07-14. Sub-Cycle Strong-Field Interferometry. https://doi.org/10.1364/oe.18.024307

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