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The link between the inversion gain of quantum cascade structures and the Bloch gain in periodic superlattices is presented. The proposed theoretical model based on the density matrix formalism is able to treat the gain mechanism of the Bloch oscilla
Externí odkaz:
http://arxiv.org/abs/cond-mat/0205359
Autor:
Rochat, Michel, Ajili, Lassaad, Willenberg, Harald, Faist, Je´ro⁁me, Beere, Harvey, Davies, Giles, Linfield, Edmund, Ritchie, David
Publikováno v:
Applied Physics Letters; 8/19/2002, Vol. 81 Issue 8, p1381, 3p, 1 Diagram, 3 Graphs