☆ 4.5 Article

Topological Charge Identification of Vortex Beams Through Optical Correlation

IEEE PHOTONICS TECHNOLOGY LETTERS (2023)

Related references

Note: Only part of the references are listed.

Article Engineering, Electrical & Electronic

Image Encryption by Structured Phase Encoding and Its Effectiveness in Turbulent Medium

Allarakha Shikder et al.

Summary: This letter introduces a novel method for binary image encryption using structured phase encoding. The structured phase is obtained by multiple lattices of spatially distributed phase singularity points with varying azimuthal indices. It has been shown that data encoding using orthogonal sets of optical vortex modes enable noise-free decryption and provide robustness against atmospheric turbulence in short propagation distance.

IEEE PHOTONICS TECHNOLOGY LETTERS (2023)

Add to Collection

Article Optics

Measurement of the fractional topological charge of an optical vortex beam through interference fringe dislocation

A. L. L. A. R. A. K. H. A. SHIKDER et al.

Summary: In this study, a simple technique to measure the fractional topological charges (TCs) of an optical vortex is demonstrated using a spiral interferometer and fork-shaped interference patterns, with a resolution of 0.05. The proposed technique provides satisfactory results in cases of low to moderate atmospheric turbulences, and is relevant to free-space optical communications.

APPLIED OPTICS (2023)

Add to Collection

Article Optics

Measuring the topological charge of optical vortices with a single plate

Jingyin Zhao et al.

Summary: Measuring the topological charge (TC) of optical vortex beams by the edge-diffraction pattern of a single plate is proposed and demonstrated in this paper. The redundant fringes of the diffracted fork-shaped pattern can determine the TC value, and the orientation of the fork indicates the handedness of the vortex. The method is practical and easy to implement, offering convenience and efficiency for researchers.

CHINESE OPTICS LETTERS (2022)

Add to Collection

Article Optics

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

Jingbo Ma et al.

Summary: The study investigates off-axis interference between two oblique-incident vortex beams, establishing new formulas to describe various fork-shaped fringes. Experimental measurements and numerical simulations confirm the accuracy of the theoretical results, which can be applied to detect the TCs' sign and value of unknown vortex beams effectively.

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION (2021)

Add to Collection

Article Physics, Multidisciplinary

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

Bin Lan et al.

PHYSICA SCRIPTA (2019)

Add to Collection

Article Optics

Determining topological charge based on an improved Fizeau interferometer

Shengwei Cui et al.

OPTICS EXPRESS (2019)

Add to Collection

Article Optics

Self-referenced spiral interferogram using modified lateral shearing Mach-Zehnder interferometer

Praveen Kumar et al.

APPLIED OPTICS (2019)

Add to Collection

Article Physics, Multidisciplinary

Superhigh-Resolution Recognition of Optical Vortex Modes Assisted by a Deep-Learning Method

Zhanwei Liu et al.

PHYSICAL REVIEW LETTERS (2019)

Add to Collection

Article Optics

Measurement of the topological charge and index of vortex vector optical fields with a space-variant half-wave plate

Gui-Geng Liu et al.

OPTICS LETTERS (2018)

Add to Collection

Article Optics

Determining topological charge of an optical beam using a wedged optical flat

Behzad Khajavi et al.

OPTICS LETTERS (2017)

Add to Collection

Article Optics

Probing the topological charge of a vortex beam with dynamic angular double slits

Dongzhi Fu et al.

OPTICS LETTERS (2015)

Add to Collection

Article Physics, Multidisciplinary

Measuring the topological charge of an optical vortex by using a tilted convex lens

Pravin Vaity et al.

PHYSICS LETTERS A (2013)

Add to Collection

Article Optics

Fraunhofer diffraction of light with orbital angular momentum by a slit

Queila S. Ferreira et al.

OPTICS LETTERS (2011)

Add to Collection

Article Optics

Wavelet-modified maximum average correlation height filter for rotation invariance that uses chirp encoding in a hybrid digital-optical correlator

Shilpi Goyal et al.

APPLIED OPTICS (2006)

Add to Collection

Article Physics, Applied

Dynamic array of dark optical traps

VR Daria et al.

APPLIED PHYSICS LETTERS (2004)

Add to Collection

Article Optics

Improving the false alarm capabilities of the maximum average correlation height correlation filter

M Alkanhal et al.

OPTICAL ENGINEERING (2000)

Add to Collection

© Peeref 2019-2024. All rights reserved.