Arvinder Sandhu - Measurement and control of electronic couplings using attosecond pump-probe techniques

Sandhu
July 26, 2022
3:00PM - 4:00PM
Hybrid, in-person at PRB 4138 and virtual

Date Range
2022-07-26 15:00:00 2022-07-26 16:00:00 Arvinder Sandhu - Measurement and control of electronic couplings using attosecond pump-probe techniques Title: Measurement and control of electronic couplings using attosecond pump-probe techniques Arvinder Sandhu, University of Arizona Hybrid WebinarIn-person at Physics Research Building 4138 and Virtual  Abstract: This talk will explore the application of attosecond and femtosecond spectroscopy to quantify and control the electron-nuclear couplings and multielectron dynamics.  In the first part of the talk I will discuss the measurement of coupled electron hole motion near the conical intersection of a polyatomic molecule. These measurement are used to quantify the strength of vibronic interactions. Then I will discuss the application of attosecond transient absorption, where we show that resonant light-induced couplings lead to the formation of autoionizing polaritons that can be stabilized using the destructive interference between autoionizing and radiative ionization pathways. The metrology of autoioinzing wave packets through Raman electron interferometry will also introduced. If time permits, I will discuss ongoing work on the development of new soft-x-ray sources, and their applications in atomic, molecular, and material sciences.  Watch the recorded hybrid webinar here. SUBSCRIBE to our email list here. If you require an accommodation such as live captioning or interpretation to participate in this event, please contact Jessi Middleton at middleton.85@osu.edu. Requests made five business day prior to the event will generally allow us to provide seamless access, but the university will make every effort to meet requests made after this date. Hybrid, in-person at PRB 4138 and virtual America/New_York public

Title: Measurement and control of electronic couplings using attosecond pump-probe techniques

 

Arvinder Sandhu, University of Arizona

 

Hybrid Webinar

In-person at Physics Research Building 4138 and Virtual 

 

Abstract: This talk will explore the application of attosecond and femtosecond spectroscopy to quantify and control the electron-nuclear couplings and multielectron dynamics.  In the first part of the talk I will discuss the measurement of coupled electron hole motion near the conical intersection of a polyatomic molecule. These measurement are used to quantify the strength of vibronic interactions. Then I will discuss the application of attosecond transient absorption, where we show that resonant light-induced couplings lead to the formation of autoionizing polaritons that can be stabilized using the destructive interference between autoionizing and radiative ionization pathways. The metrology of autoioinzing wave packets through Raman electron interferometry will also introduced. If time permits, I will discuss ongoing work on the development of new soft-x-ray sources, and their applications in atomic, molecular, and material sciences. 

 

Watch the recorded hybrid webinar here.

 

SUBSCRIBE to our email list here.

 

If you require an accommodation such as live captioning or interpretation to participate in this event, please contact Jessi Middleton at middleton.85@osu.edu. Requests made five business day prior to the event will generally allow us to provide seamless access, but the university will make every effort to meet requests made after this date.