Light-Driven Droplet Manipulation Technologies for Lab-on-a-Chip Applications

<table>(a) Intensity profile of an optical vortex beam with beam waist <svg height="11.075" id="M10" style="vertical-align:-3.25793pt" version="1.1" viewbox="0 0 16.862499 11.075" width="16.862499" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.075)">
<g transform="translate(72,-63.14)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜔</tspan>
</text>
<text transform="matrix(1,0,0,-1,-63.44,63.31)">
<tspan style="font-size: 8.75px; " x="0" y="0">0</tspan>
</text>
</g>
</g>
</svg> and vortex waist <svg height="11.025" id="M11" style="vertical-align:-3.21404pt" version="1.1" viewbox="0 0 16.924999 11.025" width="16.924999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.025)">
<g transform="translate(72,-63.18)">
<text transform="matrix(1,0,0,-1,-71.95,66.44)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝜔</tspan>
</text>
<text transform="matrix(1,0,0,-1,-63.44,63.31)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑣</tspan>
</text>
</g>
</g>
</svg> at input aperture of focusing objective. (b) Schematic diagram of stable tapping for a low-index particle in an optical vortex trap. Reproduced with permission from [<a href="/journals/aoe/2011/909174/#B47">47</a>].</table>

Advances in OptoElectronics

fig3

Figure 3

Figure 3: Light-Driven Droplet Manipulation Technologies for Lab-on-a-Chip Applications 