20.01.2014 Views

Workshop proceeding - final.pdf - Faculty of Information and ...

Workshop proceeding - final.pdf - Faculty of Information and ...

Workshop proceeding - final.pdf - Faculty of Information and ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

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 />

130

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!