GTIIT-STU optics seminar

Title: Plasmonic Resonant Intercluster Coulombic Decay

Speaker: Dr. Rasheed Shaik

Physics Department, Guangdong Technion-Israel Institute of Technology

Abstract

The study of atomic clusters, or “super-atoms”, has significant potential in nano-optical devices, chemical sensors, and biomedicine acting as a “spectral laboratory” for finite-fermionic systems. We investigated the photoionization dynamics of the endohedral complex, alkali metal cluster (Na₂₀) confined in giant fullerene (C₂₄₀) using linear response time-dependent density functional theory.  It revealed the first evidence of plasmonic Intercluster Coulombic Decay (ICD). In this seminar, I will present how the plasmon of C₂₄₀, driven by a XUV photon transfers energy via resonant ICD to the Na₂₀ cluster inside. These findings aim to inspire experimental studies, particularly photoelectron spectroscopy to complement theoretical models and advance research on technologically relevant complexes.