Electromagnetic energy within coated cylinders at oblique incidence and applications to graphene coatings

Autor(es)

Arruda, Tiago Jose ^[1] ; Martinez, Alexandre Souto ^{[1, 2]} ; Pinheiro, Felipe A. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Ribeirao Preto, SP - Brazil

^[2] Natl Inst Sci & Technol Complex Syst, BR-22290180 Rio De Janeiro - Brazil

^[3] Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION; v. 31, n. 8, p. 1811-1819, AUG 2014.
• Citações Web of Science: 11

Resumo

We address electromagnetic (EM) wave scattering by an infinite coated cylinder at an arbitrary incidence angle. The time-averaged EM energy stored inside the core-shell cylinder is analytically calculated for TM- and TE-polarized incident plane waves. An analytical expression relating the internal energy to the absorption cross section is derived. As an application, the EM energy inside dielectric cylinders coated with isotropic graphene layers epitaxially grown on silicon carbide (SiC) is studied. We find that off-resonance field enhancement occurs in graphene SiC microshells for TM-polarized terahertz waves, a phenomenon that can be explained in terms of Fano resonances. (C) 2014 Optical Society of America (AU)

• Processo FAPESP: 10/10052-0 - Energia interna e espalhamento de ondas eletromagnéticas por esferas ou cilindros: ressonâncias de Fano e suas aplicações a metamateriais
• Beneficiário: Tiago José Arruda
• Modalidade de apoio: Bolsas no Brasil - Doutorado