Attosecond Spectroscopy

Synopsis:

Attosecond pulses are produced by nonlinear-optical high-harmonic generation of focused few-cycle phase-stabilized femtosecond laser light in a rare gas target. These pulses are used to illuminate the quantum dynamics and correlated motion of electrons in various systems, including atoms, molecules, clusters and nanoparticles.

Molecules studied:

small molecules (N₂, SF₆), clusters (Ne_n), metal nanoparticles

Information obtained:

Time-resolved wavefunctions of electrons

Project members:

Justine Bell

Annelise Beck

Hiroki Mashiko

Recent publications:

♦ "Isolated attosecond pulses from ionization gating of high-harmonic emission", M. J. Abel, T. Pfeifer, P. M. Nagel, W. Boutu, M. J. Bell, C. P. Steiner, D. M. Neumark, and S. R. Leone, Chem. Phys. 366, 9 (2009). pdf

♦ "Measurement and optimization of isolated attosecond pulse contrast", T. Pfeifer, M. J. Abel, P. M. Nagel, W. Boutu, M. J. Bell, Y. Liu, D. M. Neumark, and S. R. Leone, Opt. Lett. 34, 1819 (2009). pdf

♦ "Carrier-envelope phase-dependent quantum interferences in multiphoton ionization", M. J. Abel, T. Pfeifer, A. Jullien, P. M. Nagel, M. J. Bell, D. M. Neumark, and S. R. Leone, J. Phys. B 42, 075601 (2009). pdf

Additional information:

http://atto.lbl.gov