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12 April 2021 Probing quantum materials with ultrafast terahertz spectroscopy
Rohit P. Prasankumar
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Proceedings Volume 11725, Next-Generation Spectroscopic Technologies XIV; 1172508 (2021) https://doi.org/10.1117/12.2589622
Event: SPIE Defense + Commercial Sensing, 2021, Online Only
Abstract
Low energy excitations can shed light on the interplay between different degrees of freedom in complex materials. Ultrashort terahertz (THz) pulses can be used to both drive and probe these excitations. This is particularly useful in quantum materials, since these materials exhibit novel magnetic and lattice excitations that can potentially be used to control their properties. Here, the use of ultrafast THz spectroscopy to understand the dynamic properties of Weyl semimetals, probe a graphene nanoribbon-based metasurface, and study conductivity dynamics in superconducting heterostructures will be discussed.
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Rohit P. Prasankumar "Probing quantum materials with ultrafast terahertz spectroscopy", Proc. SPIE 11725, Next-Generation Spectroscopic Technologies XIV, 1172508 (12 April 2021); https://doi.org/10.1117/12.2589622
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KEYWORDS
Ultrafast laser spectroscopy
Terahertz spectroscopy
Terahertz radiation
Graphene
Heterojunctions
Magnetism
Metalloids
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