Radiation pressure cross sections and optical forces over negative refractive index spherical particles by ordinary Bessel beams

Autor(es)

Ambrosio, Leonardo A. ^[1] ; Hernandez-Figueroa, Hugo E. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, UNICAMP, Sch Elect & Comp Engn, Dept Microwave & Opt, BR-13083970 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: APPLIED OPTICS; v. 50, n. 22, p. 4489-4498, AUG 1 2011.
• Citações Web of Science: 21

Resumo

When impinged by an arbitrary laser beam, lossless and homogeneous negative refractive index (NRI) spherical particles refract and reflect light in an unusual way, giving rise to different scattered and internal fields when compared to their equivalent positive refractive index particles. In the generalized Lorenz-Mie theory, the scattered fields are dependent upon the Mie scattering coefficients, whose values must reflect the metamaterial behavior of an NRI scatterer, thus leading to new optical properties such as force and torque. In this way, this work is devoted to the analysis of both radial and longitudinal optical forces exerted on lossless and simple NRI particles by zero-order Bessel beams, revealing how the force profiles are changed whenever the refractive index becomes negative. (c) 2011 Optical Society of America (AU)

• Processo FAPESP: 05/51689-2 - Centro de Pesquisa em Óptica e Fotônica - UNICAMP (CEPOF-UNICAMP)
• Beneficiário: Hugo Luis Fragnito
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 09/54494-9 - Viabilidade do uso de particulas metamateriais para manipulacao e aprisionamento opticos.
• Beneficiário: Leonardo Andre Ambrosio
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado