Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it instrumental in...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Stiffness-tunable oral nanoparticles facilitate damaged islet β cell restoration for diabetes treatment.

Science advances·2026
Same author

Follow-up effects of mindfulness-based interventions on anxiety in adolescents: a systematic review and meta-analysis of randomized controlled trials.

Child and adolescent psychiatry and mental health·2026
Same author

MXene-Based Optical Fiber Sensors for Chemical and Biosensing: Review and Perspectives.

Analytical chemistry·2026
Same author

Targeting the exosomal CaMK2A-ZDHHC3-GPX4 pathway reprograms tumor-associated macrophages and enhances anti-PD-1/PD-L1 immunotherapy in gastric cancer.

International journal of biological sciences·2026
Same author

Integrating serological markers of Helicobacter pylori and pepsinogen to improve detection of gastric precancerous conditions.

BMC gastroenterology·2026
Same author

Mechanistic insights into chlorpyrifos-induced nephrotoxicity revealed by network toxicology and molecular docking.

Drug and chemical toxicology·2026

Related Experiment Video

Updated: May 16, 2026

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Correlation matching method for high-precision position detection of optical vortex using Shack-Hartmann wavefront

Chenxi Huang1, Hongxin Huang, Haruyoshi Toyoda

  • 1State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou, Zhejiang, China. hcx1231@gmail.com

Optics Express
|November 29, 2012
PubMed
Summary
This summary is machine-generated.

We developed a new method using a Shack-Hartmann wavefront sensor (SHWS) for precise detection of singularity points in optical vortex beams. This technique achieves high spatial resolution, crucial for advanced optical applications.

More Related Videos

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
13:31

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

Related Experiment Videos

Last Updated: May 16, 2026

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
13:31

High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis

Published on: December 22, 2015

Area of Science:

  • Optics and Photonics
  • Wavefront Sensing
  • Laser Physics

Background:

  • Optical vortex beams possess unique phase structures with singularity points.
  • Accurate detection of these singularity points is essential for various optical applications.
  • Existing methods may lack the required spatial resolution or precision.

Purpose of the Study:

  • To propose and experimentally validate a novel, high-spatial-resolution method for detecting singularity points in optical vortex beams.
  • To utilize a Shack-Hartmann wavefront sensor (SHWS) for precise singularity point localization.
  • To establish the accuracy and linearity of the proposed detection technique.

Main Methods:

  • Recording Hartmanngrams using a Shack-Hartmann wavefront sensor (SHWS).
  • Calculating a map of phase slope evaluation values from the Hartmanngram.
  • Comparing the calculated map with reference maps derived from numerically simulated spiral phases.
  • Experimental validation using a phase-only spatial light modulator to generate optical vortices.

Main Results:

  • Demonstrated a method for high-spatial-resolution detection of singularity points in optical vortex beams.
  • Achieved good linearity in the detection of singularity point positions.
  • Reported a Root Mean Square (RMS) error of approximately 0.056 (normalized to lenslet size) for measured singularity point positions.

Conclusions:

  • The proposed method offers a precise and reliable approach for localizing singularity points in optical vortex beams.
  • The experimental results confirm the effectiveness and accuracy of the SHWS-based technique.
  • This method has potential for applications requiring accurate characterization of optical vortex beams.