Gradient, scattering and other kinds of longitudinal optical forces exerted by off-axis Bessel beams in the Rayleigh regime in the framework of generalized Lorenz-Mie theory, 246, Paper 196913

Gérard Gouesbet (1)

1 CORIA - Complexe de recherche interprofessionnel en aérothermochimie

After Arthur Ashkin's pioneering work in optical levitation and manipulation, the study of optical forces exerted by laser beams on particles has become an active field of research. The present paper is a contribution to this issue. The interest of Bessel beams is that their intensity does not have any longitudinal gradient along the direction of propagation leading to a trivial separation between gradient and scattering forces. Beside the classical gradient and scattering forces, we shall however exhibit a new kind of optical forces associated with the existence of non zero axicon angles

Mots clés: Optical forces; Gradient and scattering optical forces; Bessel beams; Generalized Lorenz-Mie theory; Rayleigh regime

Domaines: Physique [physics]

Gérard Gouesbet. Gradient, scattering and other kinds of longitudinal optical forces exerted by off-axis Bessel beams in the Rayleigh regime in the framework of generalized Lorenz-Mie theory, 246, Paper 196913. Journal of Quantitative Spectroscopy and Radiative Transfer, 2020, 246, pp.106913. ⟨10.1016/j.jqsrt.2020.106913⟩. ⟨hal-02562373⟩