Three-dimensional modulations on the states of polarization of light fields Project supported by the National Natural Science Foundation of China (Grant Nos. 11634010, 11774289, 61675168, and 61377035), the National Key Research and Development Program of China (Grant No. 2017YFA0303800), Joint Fund of the National Natural Science Foundation Committee of China Academy of Engineering Physics (Grant No. U1630125), and the Fundamental Research Funds for the Central Universities, China (Grant No. 3102018zy036). |
(color online) (a) Construction principle of 3D vector beams based on longitudinally variant phases. (b) Local polarization orientation in the cross-section versus propagating distance. (c) Intensity profile in the y–z plane of zeroth order vector Bessel beam. (d)–(h) Intensity distributions in the cross-section after a polarizer at different propagation distances shown in (c). The arrows in (c)–(h) denote the polarization orientation of the polarizer.[ |