Deep learning for retrieval of the internuclear distance in a molecule from interference patterns in photoelectron momentum distributions

Abstract

We use a convolutional neural network to retrieve the internuclear distance in the two-dimensional H${}_2^{+}$ molecule ionized by a strong few-cycle laser pulse based on the photoelectron momentum distribution. We show that a neural network trained on a relatively small dataset consisting of a few thousand of images can predict the internuclear distance with an absolute error less than 0.1 a.u. We study the effect of focal averaging, and we find that the convolutional neural network trained using the focal averaged electron momentum distributions also shows a good performance in reconstructing the internuclear distance.

arXiv comment15 pages, 3 figures

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Cited by in corpus (3)

• Deep learning and high harmonic generation
• Transfer learning, alternative approaches, and visualization of a convolutional neural network for retrieval of the internuclear distance in a molecule from photoelectron momentum distributions
• Femtosecond pulse parameter estimation from photoelectron momenta using machine learning