Influence of incident light polarization on photonic nanojet |
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| Authors: | Yong Liu Baoyong Wang and Zhihua Ding |
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| Institution: | 1 State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China 2 Department of Physics, Zhaoqing University, Zhaoqing 526061, China |
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| 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(λ/n) 3 . |
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