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arXiv · 0710.0149

Multi-Channel Selective Femtosecond Coherent Control Based on Symmetry Properties

Andrey Gandman·Lev Chuntonov·Leonid Rybak·Zohar Amitay
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Abstract

We present and implement a new scheme for extended multi-channel selective femtosecond coherent control based on symmetry properties of the excitation channels. Here, an atomic non-resonant two-photon absorption channel is coherently incorporated in a resonance-mediated (2+1) three-photon absorption channel. By proper pulse shaping, utilizing the invariance of the two-photon absorption to specific phase transformations of the pulse, the three-photon absorption is tuned independently over order-of-magnitude yield range for any possible two-photon absorption yield. Noticeable is a set of two-photon dark pulses inducing widely-tunable three-photon absorption.

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Andrey Gandman, Lev Chuntonov, Leonid Rybak, Zohar Amitay. 2007-09-30. Multi-Channel Selective Femtosecond Coherent Control Based on Symmetry Properties. https://doi.org/10.1103/physrevlett.100.193002

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