We compute optical forces exerted on dielectric nano-spheres in the near-field of a structured metallic film. Large field enhancement induced by the fundamental Bloch surface plasmon mode is shown to result in efficient trapping.
© 2008 The Optical Society
(240.0240) Optics at surfaces : Optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
(350.0350) Other areas of optics : Other areas of optics
(350.4855) Other areas of optics : Optical tweezers or optical manipulation
A. R. Zakharian, A. Kobyakov, A. Mafi, and S. A. Darmanyan, "Enhanced Radiation Forces in the Near-Field of a Structured Thin Metallic Film," in Frontiers in Optics 2008/Laser Science XXIV/Plasmonics and Metamaterials/Optical Fabrication and Testing, OSA Technical Digest (CD) (Optical Society of America, 2008), paper JWA2.
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