Vortex beam: generation and detection of orbital angular momentum

Y Bai, H Lv, X Fu, Y Yang - Chinese Optics Letters, 2022 - opg.optica.org
Recent advances in the research of vortex beams, structured beams carrying orbital angular
momentum (OAM), have revolutionized the applications of light beams, such as advanced …

Review on vortex beams with low spatial coherence

X Liu, J Zeng, Y Cai - Advances in Physics: X, 2019 - Taylor & Francis
Vortex beams with helical phase, carrying phase singularity and orbital angular momentum,
have attract great attention in the past decades due to their wide applications in optical …

Orbital angular momentum complex spectrum analyzer for vortex light based on the rotational Doppler effect

HL Zhou, DZ Fu, JJ Dong, P Zhang, DX Chen… - Light: Science & …, 2017 - nature.com
The ability to measure the orbital angular momentum (OAM) distribution of vortex light is
essential for OAM applications. Although there have been many studies on the …

Astigmatic transforms of an optical vortex for measurement of its topological charge

VV Kotlyar, AA Kovalev, AP Porfirev - Applied Optics, 2017 - opg.optica.org
We obtain analytical expressions for the complex amplitudes of optical vortices deformed by
astigmatic transforms, ie, passed either through a cylindrical lens or through an inclined …

Measuring high orbital angular momentum of vortex beams with an improved multipoint interferometer

Q Zhao, M Dong, Y Bai, Y Yang - Photonics Research, 2020 - opg.optica.org
A multipoint interferometer (MI), uniformly distributed point-like pinholes in a circle, was
proposed to measure the orbital angular momentum (OAM) of vortex beams [Phys. Rev. Lett …

Probing the orbital angular momentum of intense vortex pulses with strong-field ionization

Y Fang, Z Guo, P Ge, Y Dou, Y Deng… - Light: Science & …, 2022 - nature.com
With the rapid development of femtosecond lasers, the generation and application of optical
vortices have been extended to the regime of intense-light-matter interaction. The …

Self-reconstruction of the degree of coherence of a partially coherent vortex beam obstructed by an opaque obstacle

X Liu, X Peng, L Liu, G Wu, C Zhao, F Wang… - Applied Physics …, 2017 - pubs.aip.org
The distribution of degree of coherence of a partially coherent vortex beam reveals rich
information about the vortex phase, and it is known that one can determine the topological …

Characteristics of fork-shaped fringes formed by off-axis interference of two vortex beams

J Ma, P Li, Z Zhou, Y Gu - Journal of the Optical Society of America A, 2020 - opg.optica.org
Fork-shaped fringes are formed for off-axis interference between two oblique-incident vortex
beams. New formulas considering various parameters [such as the angles between two …

Probing the fractional topological charge of a vortex light beam by using dynamic angular double slits

J Zhu, P Zhang, D Fu, D Chen, R Liu, Y Zhou… - Photonics …, 2016 - opg.optica.org
Vortex beams with fractional topological charge (FTC) have many special characteristics
and novel applications. However, one of the obstacles for their application is the difficulty of …

The topological charge measurement of the vortex beam based on dislocation self-reference interferometry

B Lan, C Liu, D Rui, M Chen, F Shen, H Xian - Physica Scripta, 2019 - iopscience.iop.org
Vortex beam generally refers to a kind of beam with orbital angular momentum, which has
been widely implemented in the field of optical trapping, optical communication, rotation …