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Sepehri Javan N, Kheirandish A, Mohammadzadeh H, Farhoomand A. Investigation of nonlinear dynamics of linear chain of metallic nanoparticles in the interaction with a laser: Perpendicular propagation. ICOP & ICPET _ INPC _ ICOFS 2018; 24 :565-568
URL: http://opsi.ir/article-1-1618-en.html
URL: http://opsi.ir/article-1-1618-en.html
1- Department of Physics, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
Abstract: (2545 Views)
Study of the dynamics of the interaction of intense electromagnetic fields with metallic nanoparticles is a great interest of some applied nonlinear phenomena in nano-optics and plasmonic. These phenomena include harmonics generation, nano-focusing, self-focusing, nonlinear modes and nano-waveguiding. Using a relativistic modified Drude model, we analytically solve the motion equations of spherical nanoparticles linear chain interacting with a linearly-polarized laser propagating perpendicular to the symmetry axis of the array. Mutual interaction of each particle with two adjacent neighbors has been considered in the dipole-dipole interaction regime. By means of a perturbative approach, the motion equations of the first, second and third harmonics of electromagnetic fields are solved and it is shown that the interparticle separation of particles has a clue role in the nonlinear dynamics.
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