Absorption and Scattering of Light on Electron and Positron States in Quasi-Zero-Dimensional Nanosystems
A. P. Shpak, S. I. Pokutnyi, V. M. Uvarov, M. S. Pokutnyi
G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
Received: 10.12.2007; final version - 12.06.2008. Download: PDF
We analyzed the results of theoretical and experimental research on the interaction of an electromagnetic field with electron and positron states arising in quasi-zero-dimensional metal and semiconductor nanosystems. As shown, the oscillator strengths and dipole moments for the transitions involving one-particle electron and positron in quasi-zero-dimensional nanosystems attain gigantic values, substantially exceeding the corresponding typical values for bulk materials. As revealed within the scope of the dipole approximation, the giant optical absorption cross sections in the quasi-zero-dimensional nanosystems provide a possibility to use these nanosystems as new efficient absorbing materials.
Keywords: light adsorption and radiation, electron and positron states, quasizerodimensional nanosystems, oscillator strengths.
PACS: 68.65.Hb, 71.60.+z, 73.21.La, 78.67.Hc, 78.70.Bj
DOI: https://doi.org/10.15407/ufm.09.03.289
Citation: A. P. Shpak, S. I. Pokutnyi, V. M. Uvarov, and M. S. Pokutnyi, Absorption and Scattering of Light on Electron and Positron States in Quasi-Zero-Dimensional Nanosystems, Usp. Fiz. Met., 9, No. 3: 289—304 (2008) (in Russian), doi: 10.15407/ufm.09.03.289