Two-dimensional arrays of gold nanoparticles with a periodicity commensurate with the wavelength of resonant excitation of localized plasmons have been shown to exhibit a strong long-range interaction between particles. We investigate experimentally the effect of varying the degree of disorder in the geometrical arrangement from a periodic to a disordered lattice with constant occupancy. We also investigate the effect of disorder arising from variations in particle size for a regular lattice, and the effect this has on the broadening of the spectral line shape is discussed. A coupled dipole model is used to describe the observed spectral features.
© 2009 Optical Society of AmericaFull Article | PDF Article
Jean Cesario, Romain Quidant, Gonçal Badenes, and Stefan Enoch
Opt. Lett. 30(24) 3404-3406 (2005)
Kyung Min Byun, Sung June Kim, and Donghyun Kim
Appl. Opt. 45(14) 3382-3389 (2006)
Ronen Adato, Ahmet Ali Yanik, Chih-Hui Wu, Gennady Shvets, and Hatice Altug
Opt. Express 18(5) 4526-4537 (2010)