Generation of dynamic Bessel beams and dynamic bottle beams using acousto-optic effect

Area of Science:

• Optics and Photonics
• Acousto-Optics
• Beam Shaping

Background:

• Generating dynamic non-diffracting beams is crucial for applications requiring precise light control.
• Existing methods for dynamic beam generation face limitations in speed and scalability.

Purpose of the Study:

• To present a novel optical configuration for generating ultra-high speed dynamic Bessel beams and dynamic bottle beams.
• To investigate the characteristics of these dynamic beams using a time-resolved approach.

Main Methods:

• Utilizing an axisymmetric acousto-optic device combined with spatial filtering (mask or digital micromirror device).
• Employing time-resolved measurements with stroboscopic pulsed illumination.
• Conducting numerical simulations based on Fourier optics.

Main Results:

• Demonstrated the generation of ultra-high speed dynamic Bessel and bottle beams.
• Characterized spatial intensity distribution, modulation factors, and MHz-range temporal modulation.
• Confirmed the scalability of the generated beams through simulations and experiments.

Conclusions:

• The proposed optical configuration enables efficient generation of dynamic non-diffracting and bottle beams at high speeds.
• The method offers a versatile platform for studying and applying dynamic beam characteristics.
• Validated through both numerical simulations and experimental realizations.