Chinese Optics Letters, Vol. 18, Issue 10, 100501 (2020)
New kind of Hermite–Gaussian-like optical vortex generated by cross phase
Chen Wang1, Yuan Ren1,2,*, Tong Liu1, Linlin Chen1, and Song Qiu1
- 1Department of Aerospace Science and Technology, Space Engineering University, Beijing 101416, China
- 2State 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.
Please Enter Your Email: