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5 June 2007 Resonant photonic forces induced by light transmitted through nano-apertures
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Transmission of light and other electromagnetic waves through apertures smaller than the wavelength are now well known to yield field intensity enhancements due to morphological resonances of the aperture or, if these are periodically arranged, as a consequence of Rayleigh or other Wood anomalies. In this communication we study the effect of this transmission on the photonic force induced by light on a particle in front of a hole practiced in a metallic slab. Several shapes, constitution and sizes of particles are analyzed. A correlation of the strength of the force with the transmittivity is found, although it can be either attractive or repulsive depending on the wavelength and the corresponding hole resonance. Also, we study the effect of coupling of both the hole and the particle Mie resonances.
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Luis A. Blanco and Manuel Nieto-Vesperinas "Resonant photonic forces induced by light transmitted through nano-apertures", Proc. SPIE 6593, Photonic Materials, Devices, and Applications II, 65930K (5 June 2007); doi: 10.1117/12.723144;

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