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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Trapping double negative particles in the ray optics regime using optical tweezers with focused beams

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Author(s):
Ambrosio, Leonardo Andre [1] ; Hernandez-Figueroa, H. E. [1]
Total Authors: 2
Affiliation:
[1] Univ Estadual Campinas, UNICAMP, DMO, Sch Elect & Comp Engn FEEC, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Optics Express; v. 17, n. 24, p. 21918-21924, NOV 23 2009.
Web of Science Citations: 10
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 (AU)

FAPESP's process: 05/51689-2 - Optics and Photonics Research Center at UNICAMP
Grantee:Hugo Luis Fragnito
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC