Bessel Beam: Significance and Applications-A Progressive Review

Area of Science:

• Optics and Photonics
• Wave Phenomena

Background:

• Diffraction is a fundamental wave property occurring when light encounters obstacles, altering its amplitude and phase.
• Non-diffractive beams, such as Bessel beams, exhibit remarkable resistance to diffraction, making them advantageous over traditional Gaussian beams.

Purpose of the Study:

• To provide a comprehensive review of non-diffractive Bessel beams.
• To highlight the diverse and significant applications of Bessel beams in various scientific and commercial fields.

Main Methods:

• This paper is a review, synthesizing existing research on Bessel beams.
• Key applications are discussed, supported by explanations of their underlying principles.

Main Results:

• Bessel beams demonstrate significant resistance to diffraction, maintaining their structure over distance.
• Numerous applications are detailed, including optical trapping, material processing, and advanced imaging techniques like optical coherence tomography.
• Emerging uses in superresolution, sharp focusing, polarization control, and optical encryption are also presented.

Conclusions:

• Bessel beams are a powerful tool in optics, offering unique solutions to challenges posed by diffraction.
• Their versatility supports a wide array of current and future technological advancements.