In an optical vortex, light is twisted like a corkscrew around its axis of travel. Because of the twisting, the light waves at the axis itself cancel each other out. When projected onto a flat surface, an optical …

Oct 2, 2019 · 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.

We describe the main properties of electron vortex states, experimental achievements and possible applications within transmission electron microscopy, as well as the possible role of vortex electrons …

Dec 15, 2023 · An optical vortex, or a phase singularity, is a unique point within an optical field where light intensity reaches zero due to the twisting of light waves, resembling a corkscrew pattern.

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Summarizing the fundamentals of optical vortices, it discusses their characterization and propagation, and focuses on the generation of vortices such as vortex-arrays, and the detection of vortices and …

Helical modes of light can be focused into toroidal optical traps known as optical vortices, which are capable of localizing and applying torques to small volumes of matter.

This article reviews recent progress leading to the generation of optical vortex beams. After introducing the basics of optical vortex beams and their promising applications, we summarized different …

May 28, 2024 · Unlike a standard light beam, which propagates with a uniform phase front, an optical vortex exhibits a helical phase structure. This means that at any point in the beam’s cross-section, …

Jun 2, 2025 · We begin by introducing the underlying principles of optical vortices and then explore numerous methods for designing optical vortex lasers, including bulk laser, fiber laser and on-chip laser.