Abstract
The strong field localization generated between closely placed metal particles excited by electromagnetic radiation induces intense forces on small polarizable objects. In this study we investigate the optical forces that can be generated in the vicinity of metal nanoparticle clusters using fully electrodynamic numerical simulations. The influence of the cluster configuration as well as of the excitation parameters is analyzed.
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References
A. Ashkin, Acceleration and trapping of particles by radiation pressure. Phys. Rev. Lett. 24, 156–159 (1977)
L. Novotny, R.X. Bian, X.S. Xie, Theory of nanometric optical tweezers. Phys. Rev. Lett. 79, 645–648 (1970)
A.N. Grigorenko, W. Roberts, M.R. Dickinson, Y. Zhang, Nanometric optical tweezers based on nanostructures substrates. Nat. Photonics 2, 365–670 (2008)
M. Righini, P. Ghenuche, S. Cherukulappurath, V. Myroshnychenko, F.J. García de Abajo, R. Quidant, Nano-optical trapping of Rayleigh particles and Escherichia coli bacteria with resonant optical antennas. Nano Lett. 9, 3387–3391 (2009)
B.J. Roxworthy, K.D. Ko, A. Kumar, K.H. Fung, E.K.C. Chow, G.L. Liu, N.X. Fang, K.C. Toussaint Jr, Application of plasmonic bowtie nanoantenna arrays for optical trapping, stacking, and sorting. Nano Lett. 12, 796–801 (2012)
J.R. Krenn, A. Dereux, J.C. Webber, E. Bourillot, Y. Lacroute, J.P. Goudonnet, G. Schider, W. Gotschy, A. Leitner, F.R. Aussenegg, C.F.R. Girard, Squeezing the optical near-field zone by plasmon coupling of metallic nanoparticles. Phys. Rev. Lett. 82, 2590–2593 (1999)
B. Richards, E. Wolf, Electromagnetic diffraction in optical systems. II. Structure of the image field in an aplanatic system. Proc. Royal Soc. Lond. 253(1274), 358–379 (1959)
L. Novotny, B. Hecht, Principles of Nano-optics (Cambridge university press, Cambridge, 2006)
J.M. Gérardy, M. Ausloos, Absorption spectrum of clusters of spheres from the general solution of Maxwell’s equations. II. Optical properties of aggregated metal spheres. Phys. Rev. B 25, 4204–4229 (1982)
C.F. Bohren, D.R. Huffman, Absorption and Scattering of Light by Small Particles (Wiley-Vch, New York, 2008)
C.J.R. Sheppard, P. Török, Efficient calculation of electromagnetic diffraction in optical systems using a multipole expansion. J. Mod. Opt. 44, 803–818 (1997)
R. Borghi, M. Santarsiero, M.A. Alonso, Highly focused spirally polarized beams. J. Opt. Soc. Am. A 22, 1420–1431 (2005)
J. Sancho-Parramon, Near-field coupling of metal nanoparticles under tightly focused illumination. Opt. Lett. 36, 3527–3529 (2011)
J. Sancho-Parramon, S. Bosch, Dark modes and Fano resonances in plasmonic clusters excited by cylindrical vector beams. ACS Nano 6, 8415–8423 (2012)
A. Rohrbach, E. Stelzer, Optical trapping of dielectric particles in arbitrary fields. J. Opt. Soc. Am. A 18, 839–853 (2001)
H. Xu, M. Käll, Surface-plasmon-enhanced optical forces in silver nanoaggregates. Phys. Rev. Lett. 89, 246802 (2002)
U. Kreibig, M. Vollmer, Optical Properties of Metal Clusters (Springer Series in Materials Science, New York, 1995)
A.A.E. Saleh, J.A. Dionne, Toward efficient optical trapping of sub-10-nm particles with coaxial plasmonic apertures. Nano Lett. 12, 5581–5586 (2012)
Acknowledgments
JSP acknowledges the financial support of the Government of Catalonia through a Beatriu de Pinós post-doctoral grant. The authors also acknowledge the support of the project FIS2012-38244-C02-02 of the Spanish Ministry of Economy and Competitivity.
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Sancho-Parramon, J., Bosch, S. Optical forces induced by metal nanoparticle clusters. Appl. Phys. A 115, 393–397 (2014). https://doi.org/10.1007/s00339-013-8087-3
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DOI: https://doi.org/10.1007/s00339-013-8087-3