Selective excitation of multipolar surface plasmon in a graphene-coated dielectric particle by Laguerre Gaussian beam

Yang Yang^{1, 2}, Zhang Guanghua^{1, †}, Dai Xiaoyu¹

Multipolar mode profile of electric field of the localized surface plasmon of the graphene coated dielectric particle excited by LG beam, panels (a)–(c) correspond to the red, magenta, and navy blue circles in Fig. 4(e), representing different plasmonic modes, respectively.