AMO Seminar Speakers Francois Mauger and Paul Abanador (Louisiana State University tomorrow, November 13, 2015 10:30am

[Shipley, Dameyon]

Please take note of AMO Seminar taking place tomorrow, Friday, November 13, 2015 at 10:30 AM in 4138 Physics Research Building. Details concerning the talk are as follows:

Speakers:            Francois Mauger and Paul Abanador (Louisiana State University)
Date:                     Friday, November 13, 2015
Time:                     10:30 AM
Place:                    4138 Physics Research Building
Title:                      Semi-classical perspective to High Harmonic Spectroscopy


Abstract: In this presentation, we will introduce classical and semi-classical models for electron dynamics in strong-field physics. In particular, we will discuss their application to High Harmonic Generation (HHG) and Spectroscopy (HHS). First, we will consider the Classical Trajectory Monte-Carlo (CTMC) technique which models the ionized electron dynamics with an ensemble of randomly initialized classical trajectories. The trajectory picture of the CTMC offers an intuitive perspective and easy numerical simulations that account fully for the long range interactions with the parent ion. Then we will introduce a semi-classical wavefunction (SCWF) model that couples the trajectory (particle) perspective to quantum (wave) features. From the SCWF we discuss how the HHG spectrum can be factorized into the product of the individual cross sections of the processes leading to HHG. Such a factorization brings a great reduction to the complexity of HHG simulations and offers perspectives to tackle complex (molecular) systems otherwise unreachable with standard ab initio quantum simulations. In particular, in the conclusion we will discuss the projects for applying such (semi-) classical models to study charge migration through high harmonic spectroscopy. This project is a joint effort with the Ultra-fast Atomic Physics Research Group of the Ohio State University for the experimental side.


[The Ohio State University]
Dameyon Shipley
Program Coordinator
Department of Physics
Physics Research Building, 191 West Woodruff Avenue, Columbus OH  43210
614-292-7260 - Office
shipley.15 at osu.edu

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