Generation of accelerating Airy and accelerating parabolic beams using phase-only patterns.

Area of Science:

• Optics
• Photonics
• Beam shaping

Background:

• Accelerated beams, such as Airy and parabolic beams, are crucial for applications requiring non-diffracting and self-healing light propagation.
• Traditional optical setups for generating these beams often involve bulky systems with a 2f optical path length.

Purpose of the Study:

• To develop a compact optical system for generating accelerated Airy and parabolic beams.
• To reduce the overall system length while maintaining beam quality and functionality.

Main Methods:

• Utilized a phase-only pattern encoded onto a liquid crystal display (LCD).
• Designed a compact optical system with a total system length of f (focal length of the Fourier transform lens).
• Incorporated Fresnel diffraction and the Fourier transform lens directly onto the mask pattern.

Main Results:

• Successfully generated accelerated Airy and accelerated parabolic beams using the compact system.
• Achieved excellent experimental results demonstrating the effectiveness of the phase-only pattern.
• Validated the reduced optical system length of f.

Conclusions:

• The developed compact optical system significantly simplifies the implementation of accelerated Airy and parabolic beams.
• This approach offers a practical and efficient method for generating specialized light beams.