Figure 3
(a) Normalized electric field intensities at the resonance wavelength of λ = 8.8 μm. The field distribution is plotted at 10 nm above the graphene (z = 10 nm) and normalized to the electric intensity of incident light; (b,c) The transverse components of optical forces exerted on a 10-nm-diameter dielectric nanoparticle; (d) The normal component of the optical force. The refractive index of the particle is n = 2 and it is placed 10 nm above the graphene. The incident light is x-polarized and its optical intensity is assumed to be 10 mW/μm2. The Fermi energy of graphene is EF = 0.6 eV.
