1. Beams, R., Lee, T., Ding, H.: Nano. Opt. 14, 463 (2006)
2. Haes, A.J., Haynes, C.L., McFarland, A.D., Schantz, G.C., Van Duyne, R.P., Zou, S.: Mater. Res. Soc. Bull. 30, 368–374 (2005)
3. Loo, C., Lowery, A., Halas, N., West, J., Drezek, R.: Nano Lett. 5, 709–711 (2005)
4. Armelles, G., Cebollada, A., Garcia-Martin, A., Garcia-Martin, J.M., Gonzalez-Diaz, M.U., Ferreiro, E., Torrado, J.F.: J. Opt. A, Pure Appl. Opt. 11, 114023 (2011)
5. Fujikawa, R., Baryshev, A.V., Kim, J., Uchida, H., Inoue, M.: J. Appl. Phys. 103, 07D301 (2008)