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Title: Collective excitations in optical spectra of nanosize exciton and electron-positron droplets

We study the optical properties of nanosize two-component Fermi systems. The photoabsorption spectra in Fermi systems containing not more than 10{sup 2} pairs of oppositely charged particles are calculated. The main focus is on the role of collective plasmon excitations. The dependences of the position of the plasmon resonance on the number of particles and the ratio of their masses in the system are investigated.
Authors:
;  [1]
  1. St. Petersburg State Technical University (Russian Federation)
Publication Date:
OSTI Identifier:
22309100
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Experimental and Theoretical Physics; Journal Volume: 119; Journal Issue: 5; Other Information: Copyright (c) 2014 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CHARGED PARTICLES; COLLECTIVE EXCITATIONS; DROPLETS; ELECTRONS; NANOSTRUCTURES; OPTICAL PROPERTIES; PLASMONS; POSITRONS