A new kind of Hermite-Gaussian-like optical vortex generated by cross-phase [Early Posting]
We propose a new kind of optical vortex called the Hermite-Gaussian-like optical vortex (HGOV) inspired by the cross-phase (CP). Theoretically, we investigate how the CP is decoupled from the phase of a cylindrical lens. We also investigate the propagation characteristics of an HGOV, which has a Hermitian-Gaussian-like intensity distribution but still retains the orbital angular momentum. Furthermore, we derive the Fresnel diffraction integral of an HGOV and study the purity at infinity. Besides, we show a novel function of the self-measurement of the HGOV. Finally, we show that we can change the relative positions of singularities and the direction of an HGOV precisely, which facilitates applications in optical micro-manipulation.
Wang Chen,Ren Yuan,Liu Tong,Chen Linlin,Qiu Song. A new kind of Hermite-Gaussian-like optical vortex generated by cross-phase[J].Chinese Optics Letters,2020,18(10):10.