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Undergraduate Physics Seminar: "Using Terahertz Spectroscopy to Probe Collective Excitations in Quantum Materials", Jason Cheng

Event Type
Seminar/Symposium
Sponsor
Department of Physics
Location
Loomis 464
Virtual
wifi event
Date
Nov 16, 2023   5:00 pm  
Speaker
Jason Cheng
Contact
Tushar Mohan
E-Mail
tusharm4@illinois.edu
Phone
848-702-1630
Views
67
Originating Calendar
Physics - Undergraduate Student Events

Collective excitations in solids have been the focus of studying quantum materials and understanding the underlying physics. One of the ways to probe these excitations is by using time-domain terahertz spectroscopy (TDTS). In the first part of the talk, I will briefly introduce how TDTS can be used in modern condensed matter to probe collective excitations in strongly correlated systems which leads to the recent discovery of massive phason in (TaSe4)2I. In the second part of the talk, I will focus more on new breakthroughs recently in TDTS which allows us to probe broader bandwidth and the relating new physics. I will also briefly introduce some other techniques that use light matter interactions to study emergent phenomena of quantum materials. 

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