title: Laser-induced periodic alignment of Ag nanoparticles in soda-lime glass.
abstract: One-, two- or three-dimensional arrays of closely spaced silver nanoparticles may lead to new optical properties, due to short or long range coupling between their resonant surface plasmons, so that the spatially controlled growth of silver nanoparticles provides an efficient way to tune their optical properties. Towards this way, we present here the periodic pattern of a glass surface with silver nanoparticles by continuous ultraviolet laser exposure. The formation of the 160 nm period pattern is well described by an interference-based model which agrees with the experimental conclusions, mainly obtained by various forms of microscopy. Statistical approach based on the autocorrelation function gives quantitative description about the quality of the order in the periodic structure and about the nanoparticles averaged diameter (80 nm). We also present the optical extinction spectrum of the Laser Induced Periodic Surface Structure (LIPSS)-containing area of the glass, which unusually shows several bands in the visible range. The period of 160 nm of the periodic structure is short enough to allow coupling between nanoparticles, which makes it a possible candidate for plasmon-based optical applications.
authors: François
authors: F
authors: Goutaland
authors: Jean-Philippe
authors: JP
authors: Colombier
authors: Mohamed Cherif
authors: MC
authors: Sow
authors: Nadège
authors: N
authors: Ollier
authors: Francis
authors: F
authors: Vocanson
mesh_terms: D017610:Calcium Compounds / Q000737:chemistry* / Q000528:radiation effects; D005898:Glass / Q000737:chemistry* / Q000528:radiation effects; D007834:Lasers; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000528:radiation effects; D008968:Molecular Conformation; D054802:Molecular Imprinting / Q000379:methods*; D010087:Oxides / Q000737:chemistry* / Q000528:radiation effects; D012834:Silver / Q000737:chemistry* / Q000528:radiation effects; D012972:Sodium Hydroxide / Q000737:chemistry* / Q000528:radiation effects; D020349:Surface Plasmon Resonance / Q000379:methods*; D013499:Surface Properties / Q000528:radiation effects
chemical_list: D017610:Calcium Compounds; D010087:Oxides; D012834:Silver; C004569:soda lime; D012972:Sodium Hydroxide