TITLE:
Radiation Forces on a Dielectric Sphere Produced by Finite Olver-Gaussian Beams
AUTHORS:
Salima Hennani, Lahcen Ez-zariy, Abdelmajid Belafhal
KEYWORDS:
Finite Olver-Gaussian Beams, Radiation Forces, Scattering Force, Gradient Force, Rayleigh Dielectric Sphere
JOURNAL NAME:
Optics and Photonics Journal,
Vol.5 No.12,
December
25,
2015
ABSTRACT: In this work, we use the analytical expression of the propagation of Finite Olver-Gaussian beams (FOGBs) through a paraxial ABCD optical system to study the action of radiation forces produced by highly focused FOGBs on a Rayleigh dielectric sphere. Our numerical results show that the FOGBs can be employed to trap and manipulate particles with the refractive index larger than that of the ambient. The radiation force distribution has been studied under different beam widths. The trapping stability under different conditions is also analyzed.