The calculation and numerical simulation on optical trapping force in lateral way of One-beam laser optical tweezers

By using the RO model,which is based on the theory of geometric optics,the optical trapping force on the microsphere particles in the Mie scattering field is calculated quantitatively.The simulation results under given parameters are described.According to the simulation results,the relations between the optical trapping force and the main parameters of the system,including focus spot radius,the relative refractive index,the laser wave-length and power and so on,are discussed.