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Accueil > Evénements > Séminaires > Archives 2014 > Nanoplasmonic Response
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Séminaire « Oxydes en basses dimensions »

Nanoplasmonic Response in Metal / Insulators - Kenneth M. Beck - Mardi 22 avril 2014 à 10 h 30

Kenneth M. Beck - Pacific Northwest National Laboratory - Richland, WA USA
Mardi 22 avril 2014 à 10 h 30 - INSP - 4 place Jussieu - 75252 PARIS Cedex 05 - Barre 22-32, 4e étage, salle 407

Abstract

We study the localized surface plasmon and surface plasmon polaritron response using photoemission electron microscopy with 2-photon femtosecond excitation. Using 400nm, 800nm, and pulse pair ultrafast irradiation, we investigate the enhancement of electromagnetic fields without the need for a probe molecule. Structures studied include solid metal nanospheres, core-shell spheres, gratings, trenches, triangles in both Ag (silver) and Au (gold). From this, conclusions are drawn and specific insight is gain in the nature and formation of « hot spots ».