Giant enhanced optical nonlinearity of colloidal nanocrystals with a graded-index host

Simple item page
dc.creatorXiao, J. J.
dc.creatorYu, K. W.
dc.date2006-01-26
dc.date.accessioned2026-07-07T06:57:48Z
dc.date.available2026-07-07T06:57:48Z
dc.descriptionThe effective linear and third-order nonlinear optical properties of metallic colloidal crystal immersed in a graded-index host fluid are investigated theoretically. The local electric fields are extracted self-consistently based on the layer-to-layer interactions, which are readily given by the Lekner summation method. The resultant optical absorption and nonlinearity enhancement show a series of sharp peaks, which merge in a broadened resonant band. The sharp peaks become a continuous band for increasing packing density and number of layers. We believe that the sharp peaks arise from the in-plane dipolar interactions and the surface plasmon resonance, whereas the continuous band is due to the presence of the gradient in the host refractive index. These results have not been observed in homogeneous and randomly-dispersed colloids, and thus would be of great interest in optical nanomaterial engineering.
dc.descriptionSubmitted to Applied Physics Letters
dc.identifierhttps://arxiv.org/abs/cond-mat/0601602
dc.identifierhttp://arxiv.org/abs/cond-mat/0601602
dc.identifierAppl. Phys. Lett. 88, 071911 (2006)
dc.identifierdoi:10.1063/1.2175484
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/107106
dc.subjectMaterials Science
dc.subjectSoft Condensed Matter
dc.subjectComputational Physics
dc.subjectOptics
dc.titleGiant enhanced optical nonlinearity of colloidal nanocrystals with a graded-index host
dc.typetext

Files

Collections

arXiv