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Updated: Jun 11, 2026
12:14
The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Generation of J(0) Bessel beams with controlled spatial coherence features.
Adrian Carbajal-Dominguez1, Jorge Bernal, Alberto Martin-Ruiz
1Universidad Juarez Autonoma de Tabasco, Division Academica de Ciencias Basicas, Cunduacan, Tabasco,C.P. 86690, Mexico. adrian.carbajal@dacb.ujat.mx
Optics Express
|July 1, 2010
Summary
Researchers developed a new way to create J(0) Bessel beams with tunable coherence. The J(0) Bessel beam emerges as a limit when using an infinite number of points, with coherence depending on the point count.
Area of Science:
- Optics
- Beam physics
- Coherence theory
Background:
- Generating Bessel beams with controlled coherence is crucial for applications in optical trapping and microscopy.
- Traditional methods often lack precise control over spatial coherence properties.
Purpose of the Study:
- To introduce an alternative method for generating J(0) Bessel beams.
- To investigate the relationship between the number of source points and the spatial partial coherence properties of the generated beam.
Main Methods:
- Numerical calculation of far-field diffraction from discrete source points on an annular region.
- Averaging diffracted fields at various rotation angles.
- Experimental detection and verification of theoretical predictions.
Main Results:
- The J(0) Bessel beam is demonstrated as a limiting case when the number of discrete source points approaches infinity.
- The complex degree of coherence is shown to be dependent on the number of source points used.
Conclusions:
- The proposed method offers a novel approach to engineer Bessel beams with tailored coherence.
- This work provides fundamental insights into the formation of Bessel beams from discrete sources and their coherence characteristics.
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