Paper 14037-57
Paper 14037-57
Weyl semimetal metasurfaces for infrared detection
On demand | Presented live 28 April 2026 
Abstract
Anisotropic properties in materials or photonic structures can enable unique light–matter interactions, which can be used to realize novel photodetection systems. This work explores Weyl semimetal-based metasurfaces (WSMs) for infrared (IR) detection applications. Theoretical calculations show that WSMs can produce nonreciprocal IR absorption that depends on the polarization and incidence angles, due to the unique band structure of Weyl semimetals with a pair of Weyl nodes. The obtained results are expected to contribute to the realization of unique IR photodetectors with nonreciprocity for various analytical applications.
Presenter
Mitsubishi Electric Corp. (Japan)
Shinpei Ogawa received his B.E., M.E., and Ph.D. degrees from the Department of Electronic Science and Engineering, Kyoto University, Japan, in 2000, 2002 and 2005, respectively. He has been with the Advanced Technology R&D Center, Mitsubishi Electric Corporation, Amagasaki, Japan, since 2005. He works on the development of advanced functional infrared sensors using graphene-based infrared sensors, plasmonics, and metamaterials. He is currently a senior expert of two-dimensional materials, plasmonics, metamaterials and nanophotonics.