1. V. S. Kovivchak, R. B. Burlakov, T. V. Panova, N. A. Davletkil’deev, Pis’ma Zh. Tekh. Fiz. 34(8), 85 (2008) [Tech. Phys. Lett. 34, 358 (2008)].
2. K. Boren and D. Huffman, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983; Mir, Moscow, 1986).
3. U. Kreibig and M. Vollmer, Optical Properties of Metal Clusters (Springer, Berlin, 1995).
4. A. S. Zelenina, R. Quidant, and M. Niet-Vesperinas, Opt. Lett. 32, 1156 (2007).
5. J. Hu, W. Cai, Y. Li, and H. Zeng, J. Phys.: Condens. Matter 17, 5349 (2005).