PLASMON-POLARITONS IN ISLAND METAL FILM: A SOLUTION WITHIN THE FRAMEWORK OF THE COHERENT POTENTIAL APPROACH

The photon propagator describing the light interaction with a monolayer of the metal particles (island film) has been calculated within the framework of the coherent potential approximation. It is shown, that the displacement of the maximum frequency of the dipole surface plasmon for a monolayer particle relative to the analogous frequency of the plasma resonance of an isolated particle is not the only manifestation of the influence of neighbors. The influence of the neighboring particles also leads to a bimodal structure of the plasmon resonance spectral line. The possibility of the appearance of a fine structure of the spectral lines of the plasmon resonances is predicted.

частица, металл, островковая пленка, плазмон, резонанс, спектр, расчет, фотонный пропагатор, приближение когерентного потенциала, тонкая структура, particle, metal, island film, plasmon, resonance, spectrum, calculation, photon propagator, the coherent potential approximation, fine structure

1. D. Bedeaux, J. Vlieger. Optical Properties of Surfaces, London, Imperial College Press (2004)

2. Y. Battie, A. E. Naciri, W. Chamorro, D. J. Horwat. Phys. Chem. C, 118 (2014) 4899-4905

3. J. Toudert, L. Simonot, S. Camelio, D. Babonneau. Phys. Rev. B, 86 (2012) 045415-045430

4. S. K. Ghosh, T. Pal. Chem. Rev., 107 (2007) 4797-4862

5. C. F. Bohren, D. R. Huffman. Absorption and Scattering of Light by Small Particles, New York, Wiley (1998)

6. J. M. Ziman. Models of Disorder, Cambridge, UK, Cambridge University Press (1979)

7. D. J. Bergman. Phys. Rep., 43 (1978) 377-407

8. W. Theiss. Adv. Solid State Phys., 33 (1994)149-176

9. V. V. Maksimenko, V. A. Zagaynov, A. S. Smoliyanskiy, I. E. Agranovski. Thin Solid Films, 621 (2017) 84-90

10. Ю. И. Петров. Физика малых частиц, Москва, Наука (1982)

11. А. А. Абрикосов, Л. П. Горьков, И. Е. Дзялошинский. Методы квантовой теории поля в статистической физике, Москва, Добросвет, КДУ (2006)

12. Справочник по специальным функциям с формулами, графиками и математическими таблицами, под ред. М. Абрамовица и И. Стиган, Москва, Наука (1979)