University of Connecticut

Events Calendar

Atomic, Molecular, and Optical Physics Seminar

Monday, April 25, 2016
2:00pm – 3:30pm

Storrs Campus
Gant Science Complex

Dr. Stefan Pabst, ITAMP, Harvard-Smithsonian Center for Astrophysics, in Cambridge, MA

“Probing and Exploiting the Electronic Structure in Xenon on an Attosecond Time Scale”

Attosecond physics is a young, vibrant, and highly interdisciplinary research field. It focuses on the electron motion in atoms, molecules, and solid state systems on their intrinsic time scale. I discuss several scenarios how ultrafast pulses can be used to study and to exploit the rich electronic structure of xenon. Collective excitations, in form of the giant-dipole resonance, can lead to significant changes in the HHG spectrum [1]. A second color field makes it is possible to study dynamical aspects of the collective excitations. Furthermore, I discuss opportunities to probe the electronic structure of the giant dipole resonance in the XUV multiphoton regime making it an ideal application to free-electron laser (FEL) pulses [2]. Also the possibility to perform Rabi oscillations in the XUV regime is discussed [3]. References

[1] S. Pabst and R. Santra, PRL 111, 233005 (2013).

[2] Y.-J., Chen, S. Pabst, and R. Santra, PRA 91, 032503 (2015). [3] S. Pabst, D. Wang, and R. Santra, PRA 92, 053424 (2015).

Monday, April 25 2016 2:00 p.m.* Gant Science Complex Physics, Room PB-121



Dawn Rawlinson, 46-4916,

Physics Department (primary)

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