Experimental Evidence Of THz-LSPR In Micro Structures Patterned Bi2Se3 Topological Insulator Thin FilmsUpgraded to Oral (MM17)
Thu, 12 Nov 2020 01:00am to 01:15am
Terahertz band, which corresponds to the energy of inter-molecular binding, is expected to enable us a non-labeling detection such as antigen-antibody binding. We aim to enhance the sensitivity by surface plasmon resonance (SPR) through the signal enhancement effect due to the selective resonant excitation of the specific binding. In this study, we have focused on the topological insulators. They enhance SPR in THz region and confirm the occurrence of localized surface plasmon resonance by using micro structures of well crystallized and prefer oriented Bi2Se3 thin films fabricated by a pulsed laser deposition.
Authors: Sugimoto, Hinano; Tabata, Hitoshi
The University of Tokyo