Quasi-Bessel beams with longitudinally varying polarization state generated by employing spectrum engineering

• DOI: 10.1364/ol.41.004811
• Publication Date: 2016-10-12T00:47:44Z
• Authors: Peng Li; Yi Zhang; Sheng Liu; Lei Han; Huachao Cheng; Fan Yu; Jianlin Zhao
• Keywords: Bessel beam; Polarization controller

We report on the generation and control of quasi-Bessel beams having not only a uniform axial intensity but also longitudinally varying polarization state. Based optimization routine spatial spectrum so-called Durnin ring, we generate possessing variant with linear or sinusoidal envelopes. By utilizing Sagnac interferometer, create coaxially composite two orthogonally polarized complementary intensities to form Furthermore, demonstrate possibility flexibility manipulating trajectory, speed, period state transformation upon propagation. Our results may enable Bessel be used in other applications including optical communications, material processing, polarimetry.