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arXiv · 1211.3104

Optical tweezers with enhanced efficiency based on laser-structured substrates

D. G. Kotsifaki·M. Kandyla·I. Zergioti·M. Makropoulou·E. Chatzitheodoridis·A. A. Serafetinides
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Abstract

We present an optical nanotrapping setup that exhibits enhanced efficiency, based on localized plasmonic fields around sharp metallic features. The substrates consist of laser-structured silicon wafers with quasi-ordered microspikes on the surface, coated with a thin silver layer. The resulting optical traps show orders of magnitude enhancement of the trapping force and the effective quality factor.

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D. G. Kotsifaki, M. Kandyla, I. Zergioti, M. Makropoulou, E. Chatzitheodoridis, A. A. Serafetinides. 2012-11-13. Optical tweezers with enhanced efficiency based on laser-structured substrates. https://doi.org/10.1063/1.4728992

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