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Related Experiment Video

Updated: May 27, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

Generation of a radially polarized light beam using internal conical diffraction.

C F Phelan¹, J F Donegan, J G Lunney

¹School of Physics, Trinity College Dublin, Dublin 2, Ireland.

|November 24, 2011

Summary

We developed a new method using conical diffraction and Mach-Zehnder interferometry to convert linearly polarized laser beams into radially polarized beams, creating ring-shaped or Bessel beams.

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Last Updated: May 27, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

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Published on: February 4, 2017

Area of Science:

Optics and Photonics
Laser Physics

Background:

Linearly polarized Gaussian beams are fundamental in laser applications.
Achieving radial polarization is crucial for advanced optical manipulation and microscopy.

Purpose of the Study:

To demonstrate an efficient technique for converting linear polarization to radial polarization.
To adapt the method for generating specific beam shapes like ring-shaped or Bessel beams.

Main Methods:

Utilizing a combination of internal conical diffraction and Mach-Zehnder interferometry.
Theoretical modeling and experimental validation of the polarization conversion process.

Main Results:

Successfully demonstrated efficient conversion of linear to radial polarization.
Showcased the generation of radially polarized ring-shaped and first-order Bessel beams.

Conclusions:

The presented technique offers a versatile and efficient approach for generating radially polarized light.
This method has potential applications in microscopy, optical trapping, and material processing.