Giant Second-Harmonic Generation in Cantor-like Metamaterial Photonic Superlattices

Autor(es)

Reyes Gomez, Faustino ^[1] ; Porras-Montenegro, Nelson ^[1] ; Oliveira, Jr., Osvaldo N. ^[2] ; Ricardo Mejia-Salazar, J. ^[3]

Afiliação do(s) autor(es)

^[1] Valle Univ, Dept Phys, Cali 25360 - Colombia

^[2] Univ Sao Paulo, Sao Carlos Inst Phys, CP 369, BR-13560970 Sao Carlos, SP - Brazil

^[3] Natl Inst Telecommun Inatel, BR-37540000 Santa Rita Do Sapucai, MG - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ACS OMEGA; v. 3, n. 12, p. 17922-17927, DEC 2018.
• Citações Web of Science: 1

Resumo

We present a nonlinear transfer matrix method for studying the second-harmonic generation (SHG) in nonperiodic metamaterial photonic superlattices. A large enhancement of up to 5 orders of magnitude in SHG efficiency was observed for superlattices made with a Cantor-like quasiperiodic assembly of a nonlinear material and a metamaterial. The enhancement was found to depend much more on the electric field amplitude along the structure because of self-similarity effects than on the amount of nonlinear material, which opens the way to design superlattices for tailored applications in broad-band tunable lasers. (AU)

• Processo FAPESP: 13/14262-7 - Filmes nanoestruturados de materiais de interesse biológico
• Beneficiário: Osvaldo Novais de Oliveira Junior
• Modalidade de apoio: Auxílio à Pesquisa - Temático