Author Affiliations
Abstract
1 Department of Aerospace Science and Technology, Space Engineering University, Beijing 101416, China
2 State Key Laboratory of Laser Propulsion & Application, Space Engineering University, Beijing 101416, China
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.
Hermite-Gaussian-like optical vortex cross-phase orbital angular momentum 
Chinese Optics Letters
2020, 18(10): 100501

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