Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Confocal Fluorescence Microscopy

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...

You might also read

Related Articles

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

Sort by

Same author

Spatiotemporal flux breathing and topological sculpting in structured transverse orbital angular momentum lattices.

Nature communications·2026

Same author

Spatiotemporal structured light: introduction.

Journal of the Optical Society of America. A, Optics, image science, and vision·2026

Same author

Reconfigurable chiroptical metasurface sensors enabled by bound states in the continuum.

iScience·2026

Same author

Spatiotemporally localized optical links and knots.

Nature communications·2026

Same author

Nanophotonic chip-space interfaces for multidimensional nonlinear optics.

Nature materials·2026

Same author

Multilevel dynamic control of surface plasmon propagation direction using phase-change materials.

Nanoscale·2026

Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026

Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026

Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026

Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026

Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026

Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 9, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Compact flattop laser beam shaper using vectorial vortex.

Wen Cheng¹, Wei Han, Qiwen Zhan

¹Electro-Optics Program, University of Dayton, 300 College Park, Dayton, Ohio 45469, USA. chengwen@udayton.edu

|July 12, 2013

Summary

This summary is machine-generated.

This study presents a compact flattop beam shaper for creating 2D flattop focus. The device utilizes liquid crystal material for precise phase modulation, achieving high-quality beams with sharp edges.

More Related Videos

High-speed Particle Image Velocimetry Near Surfaces

High-speed Particle Image Velocimetry Near Surfaces

Published on: June 24, 2013

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Published on: April 23, 2018

Related Experiment Videos

Last Updated: May 9, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

High-speed Particle Image Velocimetry Near Surfaces

High-speed Particle Image Velocimetry Near Surfaces

Published on: June 24, 2013

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Published on: April 23, 2018

Area of Science:

Optics and Photonics
Materials Science

Background:

Generating uniform intensity profiles (flattop beams) is crucial for applications like laser material processing and microscopy.
Existing methods for creating flattop beams can be complex or lack precise control.

Purpose of the Study:

To demonstrate a compact and efficient beam shaping device for achieving two-dimensional (2D) flattop focus.
To utilize a second-order full Poincaré beam for precise intensity profile control.

Main Methods:

A compact beam shaper was designed and fabricated using liquid crystal material.
Voltage-dependent birefringent properties of liquid crystals were employed for phase retardation modulation.
The device was tested to evaluate its performance in generating flattop beam profiles.

Main Results:

High-quality 2D flattop beam profiles were successfully generated.
The beam shaper exhibited steep edge roll-off, indicating precise beam control.
Experimental results confirmed the device's tolerance to variations in input beam size.

Conclusions:

The developed liquid crystal-based beam shaper is an effective solution for generating 2D flattop focus.
The compact design and robust performance make it suitable for various optical applications.
The ability to achieve precise beam shaping with steep edges opens possibilities for advanced laser applications.