[5p-A410-1~13] 4.1 Plasmonics

▲ [5p-A410-2] Optical Anapole Mode with Planar Metamaterials

〇(M2)Tsung Lin Chung¹, Wei Hou Lee¹, Pin Chieh Wu², Chun Yen Liao¹, Pei Ru Wu¹, Din Ping Tsai^1,2 (1.Natl. Taiwan Univ., 2.Academia Sinica)

Keywords:Metamaterials, Toroidal, Anapole

A novel three-dimensional plasmonic metamaterial which is able to generate a transverse toroidal dipole moment under normal illumination is presented in the optical region. In addition to the toroidal dipolar response, a non-radiating anapole mode resulting from the destructive interference between toroidal and electric dipoles is also observed. Different from the previous works, it is a real artificially designed and fabricated plasmonic metamaterials for the generation of both transverse toroidal dipole moments and associated anapole mode, and readily available for feasible applications.