Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/77258
Type: Artigo de periódico
Title: Trapping double negative particles in the ray optics regime using optical tweezers with focused beams
Author: Ambrosio, LA
Hernandez-Figueroa, HE
Abstract: The capabilities of optical tweezers to trap DNG (double negative) spherical particles, with both negative permittivity and permeability, are explored in detail by analyzing some interesting theoretical features not seeing in conventional DPS (double positive) particles possessing positive refractive index. The ray optics regime is adopted and, although this regime is quite simple and limited, its validity is already known and tested for DPS particles such as biological cells and molecules trapped by highly focused beams. Simulation results confirm that even for ray optics, DNG particles present unusual and interesting trapping characteristics. (C) 2009 Optical Society of America
Country: EUA
Editor: Optical Soc Amer
Rights: aberto
Date Issue: 2009
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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