Radiation Forces on a Dielectric Sphere Produced by Finite Olver-Gaussian Beams

• 作者: Abdelmajid Belafhal Lahcen Ez-zariy Salima Hennani
• 来源期刊: 光学与光子学期刊(英文)
• 学科: 物理学
• 关键词: FINITE Olver-Gaussian BEAMS Radiation FORCES Scattering FORCE Gradient FORCE RAYLEIGH Dielectric SPHERE
• 年，卷（期）: 2015,（12）
• 页码范围: 344-353
• 页数: 10页
• 分类号: O4

摘要

In this work, we use the analytical expression of the propagation of Finite Olver-Gaussian beams (FOGBs) through a paraxial ABCD optical system to study the action of radiation forces produced by highly focused FOGBs on a Rayleigh dielectric sphere. Our numerical results show that the FOGBs can be employed to trap and manipulate particles with the refractive index larger than that of the ambient. The radiation force distribution has been studied under different beam widths. The trapping stability under different conditions is also analyzed.