Theory and measurements of harmonic generation in semiconductor superlattices with applications in the 100 GHz to 1 THz range

• Tipo: Artigo em Revista Científica Internacional
• Data: 2017-07-25

Autores

Rodrigues, AS (Autor) FCUP; M. F. Pereira (Autor) Outra; J. P. Zubelli (Autor) Outra; D. Winge (Autor) Outra; A. Wacker (Autor) Outra; V. Anfertev (Autor) Outra; V. Vaks (Autor) Outra

Revista

Título: Physical Review B

Vol. 96

Página Inicial: 045306

ISSN: 2469-9950

Editora: American Physical Society

Indexação

ISI Web of Knowledge - 28 Citações

Scopus - 41 Citações

Outras Informações

ID Authenticus: P-00Q-1VX

DOI: 10.1103/physrevb.96.045306

Abstract (EN): This manuscript describes harmonic generation in semiconductor superlattices, starting from a nonequilibrium Green's functions input to relaxation rate-type analytical approximations for the Boltzmann equation in which imperfections in the structure lead to asymmetric current flow and scattering processes under forward and reverse bias. The resulting current-voltage curves and the predicted consequences on harmonic generation, notably the development of even harmonics, are in good agreement with experiments. Significant output for frequencies close to 1 THz (7th harmonic) at room temperature, after excitation by a 141-GHz input signal, demonstrate the potential of superlattice devices for gigahertz to terahertz applications.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5