Orbital angular momentum (OAM), which describes tailoring the spatial physical dimension of light waves into a helical phase structure, has given rise to many applications in optical …

2024年8月26日 · The phase memory of OAM is revealed as the ability of twisted light to preserve the initial helical phase even propagating through the turbid tissue-like multiple scattering …

2019年10月2日 · Akin to a fluid vortex with a central flow singularity, an optical vortex beam has a phase singularity with a certain topological charge, giving rise to a hollow intensity distribution. …

2025年1月10日 · Achieving highly tailored control over both the spatial and temporal evolution of light’s orbital angular momentum (OAM) on ultrafast timescales remains a critical challenge in …

2021年10月27日 · Structured light, especially beams carrying orbital angular momentum (OAM), has gained much interest due to its unique amplitude and phase structures. In terms of …

2020年9月29日 · However, the transfer law of orbital angular momentum (OAM) during frequency conversion remains to be elucidated. Here, we demonstrate experimentally that OAM transfer …

In this letter, a method of orbital angular momentum (OAM) mode conversion based on the principle of phase superposition is presented and analyzed. Utilizing this method, OAM waves …

2024年2月5日 · In this study, we explore the impact of the astigmatism phase on the evolution of the phase singularity of an orbital angular momentum (OAM) beam propagating through free …

2025年3月12日 · Experimentally, such beams can be produced by translating a phase plate used to generate OAM beams perpendicular to the incident Gaussian beam (Fig. 1c and Methods …

In this Letter, a mode-matching method is proposed to identify the complex OAM spectrum with a Mach–Zehnder interferometer and a charge-coupled device camera. It has the potential to …