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Theoretical approach to Rayleigh and absorption spectra of semiconducting carbon nanotubes
Author(s) -
Malić Ermin,
Hirtschulz Matthias,
Milde Frank,
Wu Yang,
Maultzsch Janina,
Heinz Tony F.,
Knorr Andreas,
Reich Stephanie
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200776117
Subject(s) - rayleigh scattering , carbon nanotube , attenuation coefficient , molecular physics , absorption cross section , absorption (acoustics) , formalism (music) , scattering , spectral line , absorption spectroscopy , materials science , atomic physics , chemistry , optics , nanotechnology , cross section (physics) , physics , composite material , quantum mechanics , art , musical , visual arts
A microscopic calculation of the Rayleigh scattering cross section and the absorption coefficient for arbitrary single‐walled carbon nanotubes is presented. The approach is based on the density matrix formalism combined with the tight‐binding band structure. Both Rayleigh and absorption spectra show a characteristic intensity ratio behavior, which can be explained by an interplay of the optical matrix element and the joint density of states. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)