Polarization-controlled orbital force in optical traps of vector Bessel beams

In this work, we theoretically investigate the tailoring of optical force on a dielectric Rayleigh particle structured by a non-paraxial vector Bessel beam. By constructing a coherent superposition of transverse-electric (TE) and transverse-magnetic (TM) Bessel modes, we demonstrate that the local azimuthal orbital force can be continuously manipulated while the global topological charge remains fixed. Utilizing a full-vector force decomposition within the electric-dipole approximation, we identify a driving agent termed the polarization connection, which quantitatively maps the local transverse circularity of the field's polarization ellipse. Our results reveal that by sweeping the relative phase delay between TE and TM modes, the effective azimuthal momentum can be modulated beyond the nominal scalar vortex limit. These results identify an additional polarization-based tuning channel for controlling azimuthal optical driving forces in structured vector fields.