14–16 Feb 2018
Center for Free-Electron Laser Science, DESY and Universität Hamburg
Europe/Berlin timezone

A non-linear mapping from photo-electron spectra to pulse shape

14 Feb 2018, 17:00
2h
CFEL (blgd. 99) SR 1–3 (Center for Free-Electron Laser Science, DESY and Universität Hamburg)

CFEL (blgd. 99) SR 1–3

Center for Free-Electron Laser Science, DESY and Universität Hamburg

Luruper Chaussee 149, 22761 Hamburg
Poster Poster Poster session 1

Speaker

Sajal Kumar Giri (Max Planck Institute for the Physics of Complex Systems, Dresden)

Description

Strong field quantum dynamics are very sensitive to the shape of the interacting field. Finding a suitable pulse shape to reach a predefined target lies in the heart of quantum control. The forward non-linear mapping between the interacting pulse and the objective (photo-electron spectra(PES)) can be achieved by solving the time-dependent Schrödinger equation. However, the non-linear inverse mapping i.e. a mapping from the PES to the pulse shape is not straightforward. In this work, we have explored the non-linear inverse mapping using the artificial neural network. As a test system, we have studied quasi-resonant two-photon ionization of a helium atom for the interaction with different pulse shapes of the same energy and same frequency content.

Primary author

Sajal Kumar Giri (Max Planck Institute for the Physics of Complex Systems, Dresden)

Presentation materials

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