| Popis: |
In this paper, the gradient force and scattering force of two kinds of different sinusoidal modulated Gaussian beams (SMGBs(n=2), SMGB (n=4)) and Gaussian beam (Gb) are analyzed, and their ability to capture particles are studied. It is found that sinusoidal modulated Gaussian beams have multiple stable capture positions at the focal plane than Gaussian beam. Under the same circumstance, Monte Carlo stochastic simulation method is used to simulate the tendency characteristics of particles under the effect of gradient force and scattering force, which verifies the theoretical analysis results. Therefore, the research results of this paper have certain guiding significance in the experiment and application of multi-position optical tweezers. |
