naa a22 4500 510816312 CHVBK 20180411083509.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11468-013-9589-8 doi (NATIONALLICENCE)springer-10.1007/s11468-013-9589-8 Splitting of Plasmon Frequency in Spherical Metal Nanoparticles in Anisotropic Medium [Elektronische Daten] [Margarita Razumova, Igor Dmitruk] The problem of plasmon resonance in spherical metal nanoparticles incorporated into an anisotropic dielectric medium is studied theoretically. Analytic solution is obtained in long-wavelength approximation for the case of weak uniaxial anisotropy. It is shown that medium anisotropy causes shifts of plasmon frequency from its position in an isotropic medium, which are different for plasmons with dipole momenta parallel and perpendicular to the axis of the medium. For the parallel and perpendicular orientations, which are determined by polarization of incident light, plasmon shifts differ by a factor of 4/3. Analytic expressions for field enhancement in the vicinity of a metal nanoparticle is obtained and analyzed for the cases of noble metals. The perspectives of experimental check of the obtained results and possible applications of plasmon anisotropy in plasmonics and sensorics are discussed. Springer Science+Business Media New York, 2013 Surface plasmon nationallicence Nanoparticle nationallicence Field enhancement nationallicence Razumova Margarita Institute of High Technologies, Taras Shevchenko National University of Kyiv, 01601, Kyiv, Ukraine aut Dmitruk Igor Faculty of Physics, Taras Shevchenko National University of Kyiv, 01601, Kyiv, Ukraine aut Plasmonics Springer US; http://www.springer-ny.com 8/4(2013-12-01), 1699-1706 1557-1955 8:4<1699 2013 8 11468 https://doi.org/10.1007/s11468-013-9589-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-013-9589-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Razumova Margarita Institute of High Technologies, Taras Shevchenko National University of Kyiv, 01601, Kyiv, Ukraine aut NATIONALLICENCE 700 1- Dmitruk Igor Faculty of Physics, Taras Shevchenko National University of Kyiv, 01601, Kyiv, Ukraine aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/4(2013-12-01), 1699-1706 1557-1955 8:4<1699 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer