title: Radiation forces on a Rayleigh dielectric sphere produced by highly focused parabolic scaling Bessel beams.
abstract: The radiation forces on a Rayleigh dielectric particle induced by a highly focused parabolic scaling Bessel beam (PSBB) are investigated. Numerical results show that the zero-order PSBB can be used to trap a high-index particle at the focus and near the focus by the first-order PSBB. For the low-index particle, it can be guided or confined in the dark core of the nonzero-order PSBB but cannot be stably trapped in this single-beam trap. Further, we analyze the condition of trapping stability. It is found that the lower limit in the particle radius for stable trapping is different for different orders.
authors.forename: Mengwen
authors.initials: M
authors.lastname: Guo
authors.forename: Daomu
authors.initials: D
authors.lastname: Zhao