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Quantum Chemistry

Attosecond Quantum-Beat Spectroscopy in Helium

arXiv
Authors: Niranjan Shivaram, Xiao-Min Tong, Henry Timmers, Arvinder Sandhu

Year

2015

Paper ID

27460

Status

Preprint

Abstract Read

~2 min

Abstract Words

92

Citations

N/A

Abstract

The evolution of electron wavepackets determines the course of many physical and chemical phenomena and attosecond spectroscopy aims to measure and control such dynamics in real-time. Here, we investigate radial electron wavepacket motion in Helium by using an XUV attosecond pulse train to prepare a coherent superposition of excited states and a delayed femtosecond IR pulse to ionize them. Quantum beat signals observed in the high resolution photoelectron spectrogram allow us to follow the field-free evolution of the bound electron wavepacket and determine the time-dependent ionization dynamics of the low-lying 2p state.

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  • The evolution of electron wavepackets determines the course of many physical and chemical phenomena and attosecond spectroscopy aims to measure and control such dynamics in...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1509.00871 [2] arXiv https://arxiv.org/abs/1509.00871 [3] Publisher https://arxiv.org/abs/1509.00871

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