2011, Vol.14, No.4, pp.391-398
In this work the radiation pressure force acting on a spherical
dielectric and metal nanoparticle located in the field of laser
radiation (the Gaussian beam) was investigated theoretically. It
is shown that the components of the radiation pressure force act
effectively on a nanoparticle located within the Gaussian beam in
the region not exceeding its waist; this region is centered around
the beam axis. It is shown also that the absolute values of the
components of the radiation pressure force in the case of metal
nanoparticle may exceed the absolute values of analogous
components for the dielectric nanoparticle of the same size up to
~ 10 times and more, that is caused by the higher
polarizability of a metal nanoparticle in comparison with the
dielectric one.
Key words:
radiation pressure, Gaussian beam, nanoparticles
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