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Guzatov D.V.,YankaKupala State University of Grodno | Klimov V.V.,National Research Nuclear University MEPhI
Quantum Electronics | Year: 2014

Using the quasi-static approximation we have found exact analytical solutions to the problem of the field of a point electromagnetic source in the presence of a layer of a bi-isotropic (chiral) metamaterial. At some parameters of the problem, the resulting solution can be represented as a set of several point sources (electric and magnetic), which are images of the original source. If the original source is located near the layer, these images become real sources of the field. This paradoxical solution is then generalised to the case taking into account the retardation effects, which allows one to physically interpret the obtained solutions as a set of sources and 'sinks' of circularly polarised waves. © 2014 Kvantovaya Elektronika and Turpion Ltd. Source

Afanas'ev A.A.,B. I. Stepanov Institute of Physics | Gaida L.S.,YankaKupala State University of Grodno | Guzatov D.V.,YankaKupala State University of Grodno | Rubinov A.N.,B. I. Stepanov Institute of Physics | Svistun A.Ch.,YankaKupala State University of Grodno
Quantum Electronics | Year: 2015

Radiation forces acting on a transparent spherical nanoparticle in the field of a focused Gaussian laser beam are studied theoretically in the Rayleigh scattering regime. Expressions are derived for the scattering force and Cartesian components of the gradient force. The resultant force acting on a nanoparticle located in the centre of a laser beam is found. The parameters of the focused beam and optical properties of the nanoparticle for which the longitudinal component of the gradient force exceeds the scattering force are determined. Characteristics of the transverse gradient force are discussed. © 2015 Kvantovaya Elektronika and Turpion Ltd. Source

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