Far infrared giant dipole resonances in neutral quantum dots
  A resonance behaviour of the far infrared absorption probability at a frequency \sim N^{1/4} is predicted for clusters of N electron-hole pairs (2\le N\le 110) confined in disk-shaped quantum dots. For radially symmetric dots, the absorption is dominated by a Giant Dipole Resonance, which accounts for more than 98 % of the energy-weighted photoabsorption sum rule. 
Alain Delgado (1), Lester Lavin (1), Roberto Capote (1), and Augusto   Gonzalez (2,3) ((1) Centro de Estudios Aplicados al D...