Magnetic field distribution of a highly focused radially-polarized light beam.
A simple expression for the magnetic filed of a highly focused radially polarized light is derived and the incorrect results for the time averaged Poynting vector and the trapping stability for a gold particle presented in the paper "Trapping metallic Rayleigh particles with radial polarization" by Zhan (Opt. Express 12, 3377-3382 (2004)) are corrected.
Zhang
Yaoju
Y
College of Physics and Electronic Information, Wenzhou University, Wenzhou, China. zhangyaoju@sohu.com
Ding
Biaofeng
B
D004574:Electromagnetic Fields; D004867:Equipment Design; D006046:Gold / Q000737:chemistry; D008027:Light; D008280:Magnetics; D015233:Models, Statistical; D055095:Optics and Photonics; D012031:Refractometry; D012542:Scattering, Radiation
D006046:Gold