Quantum Gravity and String Theory

   

Time-Resolved Measurement of Internal Conversion Dynamics in Strong-Field Molecular Ionization

Authors: Vincent Tagliamonti, Brian Kaufman, Arthur Zhao, Tamás Rozgonyi, Philipp Marquetand, Thomas Weinacht

We time-resolve coupled electronic and nuclear dynamics during strong-field molecular ionization by measuring the momentum-resolved photoelectron yield as a function of pump-probe delay for a pair of strong-field laser pulses. The sub-10-fs pulses are generated using a specially designed ultrafast optical pulse shaper and the electrons are measured using velocity map imaging. Our measurements, in conjunction with calculations that solve the time-dependent Schrödinger equation, allow us to time-resolve resonance-enhanced strong-field ionization and break it down into three basic steps: (1) Stark-shifted resonant excitation of a high-lying neutral state of the molecule, (2) nonadiabatic dynamics (internal conversion) in which multiple electronic states are coupled, and (3) coupling to the continuum (ionization) http://learnrnd.com/detail.php?id=Biowarfare_and_Germwarfare

Comments: 8 Pages.

Download: PDF

Submission history

[v1] 2017-09-03 13:52:23

Unique-IP document downloads: 10 times

Vixra.org is a pre-print repository rather than a journal. Articles hosted may not yet have been verified by peer-review and should be treated as preliminary. In particular, anything that appears to include financial or legal advice or proposed medical treatments should be treated with due caution. Vixra.org will not be responsible for any consequences of actions that result from any form of use of any documents on this website.

Add your own feedback and questions here:
You are equally welcome to be positive or negative about any paper but please be polite. If you are being critical you must mention at least one specific error, otherwise your comment will be deleted as unhelpful.

comments powered by Disqus