Physics and Astronomy Colloquium
Attosecond Spectroscopy: Table-top to Compact XFEL
4:00 pm –
5:00 pm
Theodore Jorgensen Hall
Room: 136
Target Audiences:
855 N 16th St
Lincoln NE 68588
Lincoln NE 68588
Additional Info: JH
Contact:
Physics Department, (402) 472-2770, paoffice@unl.edu
Dr. Arvinder Sandhu will present his topic, “Attosecond Spectroscopy: Table-top to Compact XFEL,” via zoom.
The 2023 Nobel Prize in physics was awarded for groundbreaking research at the turn of the century that led to the generation and characterization of attosecond pulses of light. Now, attosecond techniques have matured and opened up new applications in the study of atoms, molecules, and materials. In the first half of this talk, I will provide an overview of our table-top experimental work on the coherent manipulation and control of continuum electron dynamics. I will describe how we can modify the lifetime of entangled light-matter states using tunable attosecond transient absorption. I will also discuss a Raman electron interferometry scheme to measure the electron wave packet dynamics with high temporal and spectral resolution. In the second part of the talk, I will share information on the construction of a new compact x-ray free electron laser. I will describe how this unique attosecond soft-x-ray source will create unique opportunities for quantifying electron-nuclear couplings that mediate charge transfer and will enable the observation of correlation-driven charge migration in complex molecular systems.
The 2023 Nobel Prize in physics was awarded for groundbreaking research at the turn of the century that led to the generation and characterization of attosecond pulses of light. Now, attosecond techniques have matured and opened up new applications in the study of atoms, molecules, and materials. In the first half of this talk, I will provide an overview of our table-top experimental work on the coherent manipulation and control of continuum electron dynamics. I will describe how we can modify the lifetime of entangled light-matter states using tunable attosecond transient absorption. I will also discuss a Raman electron interferometry scheme to measure the electron wave packet dynamics with high temporal and spectral resolution. In the second part of the talk, I will share information on the construction of a new compact x-ray free electron laser. I will describe how this unique attosecond soft-x-ray source will create unique opportunities for quantifying electron-nuclear couplings that mediate charge transfer and will enable the observation of correlation-driven charge migration in complex molecular systems.