Near-Field Properties of a Cylindrical Vector Field with Spatially Inhomogeneous States of Polarization
Y-L. Feng, L-X. Zhong, R-P. Chen, H. Chen, K-H. Chew and Q. Wu
The vector structure of evanescent and propagating wave components of a cylindrical vector optical field with different states of polarization in the cross-section of the field is demonstrated using the vector angular spectrum. The physical pictures of transverse electric (TE) and transverse magnetic (TM) terms of the evanescent and propagating wave components of the cylindrical vector field in the near field are clearly illustrated in detail. The work provides a new approach to manipulate laser beams by choosing proper polarization states in the cross-section of the field.
Keywords: Near-field, vector optical field, vector structure, cylindrical, evanescent wave, states of polarization