Collective resonances in the photoresponse of metallic nanoclusters

Mohamed Madjet, Himadri Chakraborty

Research output: Contribution to journalConference article


Photoabsorption and photoionization cross sections of spherical sodium clusters are calculated using the density functional method. The core of Na10+ ions are frozen into a jellium sphere and the valence electron cloud is treated by the Kohn-Sham formalism. Two approximations are employed: one that omits the electon correlation and other that incorporates it. The correlation induces an energy up-shift and redistribution of the oscillator strength (OS). The dominant part of this blue-shifted OS builds the surface plasmon below the first ionization threshold, while the remaining part moves above the threshold and produces multiple structures in the ionization continuum.

Original languageEnglish
Article number022103
JournalJournal of Physics: Conference Series
Issue number2
Publication statusPublished - 24 Dec 2009


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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