Surface plasmon radiation forces
We report the first experimental observation of momentum transfer from a surface plasmon to a single dielectric sphere. Using a photonic force microscope, we measure the plasmon radiation forces on different polystyrene beads as a function of their distance from the metal surface. We show that the f...
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Published in | Physical review letters Vol. 96; no. 23; p. 238101 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
United States
16.06.2006
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Subjects | |
Online Access | Get more information |
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Summary: | We report the first experimental observation of momentum transfer from a surface plasmon to a single dielectric sphere. Using a photonic force microscope, we measure the plasmon radiation forces on different polystyrene beads as a function of their distance from the metal surface. We show that the force magnitude at resonance is strongly enhanced compared to a nonresonant illumination. Measurements performed as a function of the probe particle size indicate that optical manipulation by plasmon fields has a strong potential for optical sorting. |
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ISSN: | 0031-9007 |
DOI: | 10.1103/PhysRevLett.96.238101 |