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Updated: May 15, 2026
12:14
The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Propagation of Bessel beams generated using finite-width Durnin ring.
Mohamed A Mahmoud1, Mohamed Y Shalaby, Diaa Khalil
1Faculty Of Engineering, Ain Shams University, 1 El Serayat St., Abbasia, Cairo 11517, Egypt. mohamedabdelhakim@yahoo.com
Applied Optics
|January 15, 2013
Summary
Researchers explored Bessel beams generated via the Durnin ring technique. Wider rings increase power but alter beam properties, requiring a balance between depth of focus and energy for specific applications.
Area of Science:
- Optics and Photonics
- Microelectromechanical Systems (MEMS) Technology
Background:
- Bessel beams offer unique diffraction-free propagation properties.
- The Durnin ring technique is a viable method for generating Bessel beams, compatible with MEMS technology.
Purpose of the Study:
- Investigate the impact of ring width on Bessel beam power and profile.
- Develop models to predict and control Bessel beam characteristics for practical applications.
Main Methods:
- Analytical derivation of an expression for the depth of focus (DOF).
- Development of a Fourier optics model to estimate the transverse field profile.
- Validation through numerical simulations and experimental measurements.
Main Results:
- Increasing ring width enhances output power but deviates from ideal Bessel beam properties.
- Analytical and optical models accurately predict beam behavior.
- A trade-off exists between DOF and beam energy, controllable via ring width.
Conclusions:
- The study provides a framework for engineering Bessel beams for specific applications.
- The findings enable optimization of Bessel beams by balancing DOF and energy content.
- This research is relevant for applications utilizing micro-optics and MEMS devices.
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