Chinese Optics Letters, 2020, 18 (10): 100501, Published Online: Aug. 7, 2020
New kind of Hermite–Gaussian-like optical vortex generated by cross phase Download: 887次
Abstract
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 Hermite–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.
Chen Wang, Yuan Ren, Tong Liu, Linlin Chen, Song Qiu. New kind of Hermite–Gaussian-like optical vortex generated by cross phase[J]. Chinese Optics Letters, 2020, 18(10): 100501.