Related Experiment Video
Updated: Feb 9, 2026

Trapping of Micro Particles in Nanoplasmonic Optical Lattice
Published on: September 5, 2017
Trapping two types of particles by using a tightly focused radially polarized power-exponent-phase vortex beam
Abstract:
We investigate the intensity of a radially polarized power-exponent-phase vortex (PEPV) beam focused by a high-numerical-aperture objective. A bright focal spot and a focal annulus with a dark core can be generated by changing the phase of the PEPV beam. The possibility of trapping a gold particle with the bright focal spot and trapping an air bubble with the focal annulus is discussed, and the force and trapping stability are calculated. It is shown that a tightly focused radially polarized PEPV beam is applicable to trapping two types of particles.
Related Concept Videos
Power in a Three-Phase Circuit
Power Distribution in Three-phase and Single Phase Circuits
Single-Phase Power Distribution:
Single-phase circuits are typical in household settings;...
Power System Three-Phase Short Circuits
Exponents
Group Polarization
Tight Junctions

