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Optical trapping force reduction and manipulation of nanoporous beads
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10.1063/1.3703604
/content/aip/journal/apl/100/15/10.1063/1.3703604
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/15/10.1063/1.3703604
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Maximum trapping forces (a) and trap stiffnesses (b) obtained from the solid glass and CPG beads at different incident laser powers on a 20× objective lens. All four curves are second-order polynomial fittings to the experimental data (open circles and squares). The inset in (a) shows the optical trapping configuration and a SEM micrograph of the CPG beads.

Image of FIG. 2.
FIG. 2.

Schematic configuration of the microfluidic chip that combining optical trap and mechanical confinements in a two-stream laminar flow condition (bottom) and close-up micrographs showing details of open-ended “V”- and fenced “cage”-shaped confinements along with a two-stream flow highlighted by red and blue dyes (top).

Image of FIG. 3.
FIG. 3.

Motion path of the optically manipulated CPG bead across the channel from position 1 inside one “cage” to position 9 inside another using a 20× lens at 800 mW laser power: (a) a cartoon and (b) an actual complete path reconstructed from collaged real-time video snapshots (dashed circle for illustrating bead position).

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/content/aip/journal/apl/100/15/10.1063/1.3703604
2012-04-11
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optical trapping force reduction and manipulation of nanoporous beads
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/15/10.1063/1.3703604
10.1063/1.3703604
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