2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) 2018
DOI: 10.1109/irmmw-thz.2018.8509881
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Detection of Boson Peak and Fractal Dynamics of Protein by Terahertz Time-Domain Spectroscopy

Abstract: Disordered systems exhibit universal excitation, referred to as the boson peak, in the terahertz region. Meanwhile, the so-called fracton is expected to appear in the nanoscale region owing to the self-similar structure of monomers in polymeric glasses. We demonstrate that such excitations can be detected using terahertz spectroscopy. For the interaction between terahertz light and the vibrational density of states of the fractal structure, we formulate an infrared light-vibration coupling coefficient for the … Show more

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