29 August 2012 Plasmonics Tweezers

Prof. Romain Quidant reviews advances in the use of plasmonics for optical trapping in MRS Bulletin. In this article, ICREA Professor at ICFO, Romain Quidant, reviews recent advances in the use of plasmonics for optical trapping and manipulation of small objects. Plasmon-based trapping addresses key limitations of conventional optical tweezers formed at the focus of a diffraction-limited laser beam. Beyond permitting trapping of smaller objects, down to the true nanometer scale, they enable parallel trapping from a single beam and can be easily integrated on a chip.

Since its first experimental demonstration in 2007 at ICFO, SP-based trapping has gained a growing interest and become a powerful technique that opens novel horizons in a wide range of fields from biology to quantum optics.

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