Chinese Optics Letters, 2011, 9 (7): 072901, Published Online: May. 18, 2011
Influence of incident light polarization on photonic nanojet Download: 1294次
光子纳米喷射 时域有限元差分法 偏振态 290.5850 Scattering, particles 180.0180 Microscopy 290.5855 Scattering, polarization
Abstract
Dielectric microspheres can confine light in a three-dimensional (3D) region called photonic nanojet is shown when they are illuminated by different polarized beams. The influence of incident light polarization on photonic nanojet using the finite-difference time-domain (FDTD) method is demostrated. The axial field intensity profiles of photonic nanojets for both the linear and circular polarization incident beams are very similar. Azimuthal polarization incident beam induces a doughnut beam along the optical axis, while the radial polarization incident beam permits one to reach an effective volume as small as 0.7(\lambda/n)3.
Yong Liu, Baoyong Wang, Zhihua Ding. Influence of incident light polarization on photonic nanojet[J]. Chinese Optics Letters, 2011, 9(7): 072901.