info:eu-repo/semantics/article
Terahertz binding of nanoparticles based on graphene surface plasmon excitations
Fecha
2022-02Registro en:
Ferrari, Hernan Javier; Zapata Rodríguez, Carlos Javier; Cuevas, Mauro; Terahertz binding of nanoparticles based on graphene surface plasmon excitations; Elsevier; Journal of Quantitative Spectroscopy and Radiative Transfer; 278; 2-2022; 1-9
0022-4073
CONICET Digital
CONICET
Autor
Ferrari, Hernan Javier
Zapata Rodríguez, Carlos Javier
Cuevas, Mauro
Resumen
This work studies the optical binding of a dimer composed by dielectric particles close to a graphene sheet. Using a rigorous electromagnetic method, we calculated the optical force acting on each nanoparticle. In addition, we deduced analytical expressions enabling to evaluate the contribution of graphene surface plasmons (GSPs) to optical binding. Our results show that surface plasmon on graphene excitations generate multiple equilibrium positions for which the distance between particles are tens of times smaller than the photon wavelength. Moreover, these positions can be dynamically controlled by adjusting the chemical potential on graphene. Normal and oblique incidence have been considered.