Femtosecond time-resolved electronic relaxation dynamics in tetrathiafulvalene

Time-resolved intraband electronic relaxation dynamics of Hgn

clusters (n57 – 13,15,18) following intraband electronic excitation at 1250 nm ~1.0 eV!. This study furthers our previous investigation of single electron, intraband relaxation dynamics in Hgn 2 clusters at 790 nm by exploring the dynamics of smaller clusters (n57 – 10), as well as those of larger clusters (n511– 13,15,18) at a lower excitation energy. We measure relaxation time scales of 2–9 p...

Time-resolved relaxation dynamics of Hgn

Electron-nuclear relaxation dynamics are studied in Hgn 2 (11<n<16,n518) using time-resolved photoelectron imaging. The excess electron in the anion uniquely occupies the p band and is excited intraband by 1.53 eV pump photons; the subsequent dynamics are monitored by photodetachment at 3.06 eV and measurement of the photoelectron images as a function of pump-probe delay. The initially excited ...

Ultrafast electronic dynamics in Helium nanodroplets studied by femtosecond time-resolved EUV photoelectron imaging

Submitted for the DAMOP09 Meeting of The American Physical Society Ultrafast electronic dynamics in Helium nanodroplets studied by femtosecond time-resolved EUV photoelectron imaging OLIVER GESSNER, OLEG KORNILOV, CHIA WANG, MATHEW LEONARD, ANDREW HEALY, Lawrence Berkeley National Laboratory, STEPHEN LEONE, DANIEL NEUMARK, University of California Berkeley & Lawrence Berkeley National Laborator...

Femtosecond dynamics of electronic states in the Mott insulator 1T-TaS2 by time resolved photoelectron spectroscopy

Photoexcitation of the Mott insulator 1T-TaS2 by an intense laser pulse leads to an ultrafast transition toward a gapless phase. Besides the collapse of the electronic gap, the sudden excitation of the charge density wave (CDW) mode results in periodic oscillations of the electronic states. We employ time resolved photoelectron spectroscopy to monitor the rich dynamics of electrons and phonons ...

Time-Resolved Electronic Relaxation Processes In Self-Organized Quantum Dots