期刊
OPTICS EXPRESS
卷 22, 期 8, 页码 10072-10080出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.22.010072
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- Agence Nationale de la Recherche (ANR) [ANR-10-NANO-002]
- Pole de competitivite Microtechnique
- Labex ACTION
- french network of technology platforms Renatech
We propose a new concept of fiber-integrated optical nano-tweezer on the basis of a single bowtie-aperture nano-antenna (BNA) fabricated at the apex of a metal-coated SNOM tip. We demonstrate 3D optical trapping of 0.5 micrometer latex beads with input power which does not exceed 1 mW. Optical forces induced by the BNA on tip are then analyzed numerically. They are found to be 10(3) times larger than the optical forces of a circular aperture of the same area. Such a fiber nanostructure provides a new path for manipulating nano-objects in a compact, flexible and versatile architecture and should thus open promising perspectives in physical, chemical and biomedical domains. (C) 2014 Optical Society of America
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