Workshop proceeding - final.pdf - Faculty of Information and ...
Workshop proceeding - final.pdf - Faculty of Information and ...
Workshop proceeding - final.pdf - Faculty of Information and ...
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Nanoparticle trapping by surface plasmon resonance assisted thermal<br />
forces<br />
Jingzhi Wu 1 * , Xiaosong Gan 1<br />
* Presenter<br />
1. Centre for Micro-Photonics, Swinburne University <strong>of</strong> Technology, VIC, Austraila, 3122<br />
Surface plasmon resonance <strong>of</strong> metal nanostructures allows strong field intensity<br />
enhancement <strong>and</strong> field gradients, which is promising for trapping <strong>and</strong> manipulation <strong>of</strong><br />
nanoparticles. However, metallic nanostructures generate heat in the presence <strong>of</strong><br />
electromagnetic radiation especially under plasmon resonance. Here, we report an approach<br />
for nanoparticles trapping explores thermal forces induced by temperature gradients in the<br />
medium surrounding the nanostructure. Simulation results show that light absorptions <strong>of</strong> the<br />
nanostructure generate great temperature gradients corresponding to strong thermal forces.<br />
This suggests stable nanometric trapping can be realized with thermal forces in nanostructures.<br />
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