Title :
Radiation force of highly focused Gaussian beams on a Rayleigh metal particle
Author_Institution :
Sch. of Electron. Inf., Zhejiang Univ. of Media & Commun., Hangzhou, China
Abstract :
The radiation force of highly focused Gaussian beams on the gold nanoparticle in the optical trap has been investigated theoretically. The distribution of gradient force, scattering force and absorption force are all obtained in detail and the trapping stability under different conditions is analyzed in this paper. Through numerical calculation, it is found that it is necessary to choose the wide input beam waist, the small focal length of the lens and the small radius of the particle for trapping metal particles.
Keywords :
gold; laser beams; microlenses; nanoparticles; optical self-focusing; radiation pressure; Au; Rayleigh metal particle; absorption force; gold nanoparticle; gradient force distribution; highly focused Gaussian beams; lens; optical trap; radiation force; scattering force; small focal length; trapping stability; wide input beam waist; Charge carrier processes; Force; Gold; Laser beams; Optical scattering; Particle beams; Gaussian beams; beam wait; metal particles; radiation force;
Conference_Titel :
Image Analysis and Signal Processing (IASP), 2012 International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4673-2547-9
DOI :
10.1109/IASP.2012.6425052
