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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

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Published on: July 12, 2017

Finite-energy, accelerating Bessel pulses.

M Clerici1, D Faccio, A Lotti

  • 1CNISM and Department of Physics and Mathematics, University of Insubria, Via Valleggio 11, IT-22100 Como, Italy.

Optics Express
|November 26, 2008
PubMed
Summary
This summary is machine-generated.

Researchers numerically demonstrate the creation of freely accelerating or decelerating light pulses. Spatial modulation of Gaussian pulses generates finite-energy Bessel beams with tunable cone angles, enabling controlled acceleration.

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Area of Science:

  • Optics and Photonics
  • Nonlinear Optics
  • Beam Propagation

Background:

  • Standard light pulses typically propagate at a constant speed.
  • Controlling light pulse dynamics, such as acceleration, is of significant interest for various applications.
  • Previous methods for generating accelerating beams often involve complex setups or specific conditions.

Purpose of the Study:

  • To numerically investigate the generation of freely accelerating or decelerating light pulses.
  • To explore a method for achieving acceleration along the propagation direction (z-axis).
  • To discuss practical implementations of such novel light beams.

Main Methods:

  • Numerical simulations were employed to study pulse dynamics.
  • The method involves spatial modulation of an input Gaussian pulse.
  • The modulated pulse takes the form of finite-energy Bessel beams with a radially varying cone angle.

Main Results:

  • Demonstrated the possibility of generating freely accelerating or decelerating pulses.
  • Showed that acceleration along the z-direction can be achieved through spatial modulation.
  • Identified finite-energy Bessel pulses with a radially varying cone angle as the key to this acceleration.

Conclusions:

  • Freely accelerating and decelerating light pulses can be generated using a specific spatial modulation technique.
  • The proposed method offers a practical approach to creating accelerating Bessel beams.
  • This research opens avenues for new optical manipulation and applications.