Reconstruction Of An Excited-State Molecular Wave Packet With Attosecond Transient Absorption Spectroscopy

Abstract

Attosecond science promises to allow new forms of quantum control in which a broadband isolated attosecond pulse excites a molecular wave packet consisting of a coherent superposition of multiple excited electronic states. This electronic excitation triggers nuclear motion on the molecular manifold of potential energy surfaces and can result in permanent rearrangement of the constituent atoms. Here, we demonstrate attosecond transient absorption spectroscopy (ATAS) as a viable probe of the electronic and nuclear dynamics initiated in excited states of a neutral molecule by a broadband vacuum ultraviolet pulse. Owing to the high spectral and temporal resolution of ATAS, we are able to reconstruct the time evolution of a vibrational wave packet within the excited B′Σu1+ electronic state of H2 via the laser-perturbed transient absorption spectrum.

Publication Date

8-5-2016

Publication Title

Physical Review A

Volume

94

Issue

2

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1103/PhysRevA.94.023403

Socpus ID

84983261842 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84983261842

This document is currently not available here.

Share

COinS