Evolution properties of a radially polarized partially coherent twisted beam propagating in a uniaxial crystal
Department of Physics, Longdong University, Qingyang 745000, P.R. China
Received: 23 November 2016
Received in final form: 13 April 2017
Published online: 6 July 2017
We derived analytical formula for the cross-spectral density of a radially polarized partially coherent twist (RPPCT) beam propagating in a uniaxial crystal orthogonal to the optical axis with the help of the extended Huygens-Fresnel integral formula and unified theory of coherence and polarization. Furthermore, we explore the evolution properties of a RPPCT beam propagating in a uniaxial crystal. It is found that the RPPCT beam becomes an anisotropic RPPCT beam and the beam spot is rotating with beam propagation in uniaxial crystal. Its evolution properties change with twist factor and the ratio of extraordinary index to ordinary refractive index. The twist factor affects their rotation orientation angles, and the ratio of extraordinary index to ordinary refractive index has an effect on their twisted levels.
Key words: Optical Phenomena and Photonics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2017