Analytical approach of ordinary frozen waves for optical trapping and micromanipulation

Autor(es)

Ambrosio, Leonardo Andre ; Zamboni-Rached, Michel

• Tipo de documento: Artigo Científico
• Fonte: APPLIED OPTICS; v. 54, n. 10, p. 10-pg., 2015-04-01.

Resumo

The optical properties of frozen waves (FWs) are theoretically and numerically investigated using the generalized Lorenz-Mie theory (GLMT) together with integral localized approximation. These waves are constructed from a suitable superposition of equal-frequency ordinary Bessel beams and are capable of providing almost any desired longitudinal intensity profile along their optical axis, thus being of potential interest in applications in which intensity localization may be used advantageously, such as in optical trapping and micromanipulation systems. In addition, because FWs are composed of nondiffracting beams, they are also capable of overcoming the diffraction effects for longer distances when compared to conventional (ordinary) beams, e.g., Gaussian beams. Expressions for the beam-shape coefficients of FWs are provided, and the GLMT is used to reconstruct their intensity profiles and to predict their optical properties for possible biomedical optics purposes. (C) 2015 Optical Society of America (AU)

• Processo FAPESP: 14/04867-1 - Ondas não-difrativas, frozen waves e feixes resistentes à atenuação e à difração para aplicações milimétricas e micrométricas
• Beneficiário: Leonardo Andre Ambrosio
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/26437-6 - Ondas não-difrativas em meios dispersivos absorventes
• Beneficiário: Michel Zamboni Rached
• Modalidade de apoio: Bolsas no Exterior - Pesquisa