[15p-312-1~10] 3.1 Basic optics and frontier of optics

[15p-312-3] Focusing Properties of Gaussian-Lagueer Light wave manipulation using computer generated holograms

〇Man Zhang¹, Gongjian Zhang¹ (1.Chitose Institute of Science and Technology)

Keywords:vortex Light wave

Optical vortex wave has possible applications in the emerging field of quantum computing and in optical manipulation. For the tightly focused such singular beams, several methods have been developed for visualizing its micro structure of the electric field inside the focal volume. In this work we measured the fundamental and high order Gaussian beams (Laguerre-Gaussian beams:LG) inside the focal region of a numerical aperture lens. The generation of high order Gaussian beam with singular phase and its focusing properties were theoretically analyzed and experimentally measured. Observed results were compared with theoretical analysis.