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Quasi-light Storage for Optical Data Packets
07:45

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Published on: February 6, 2014

Causality effects on accelerating light pulses.

Ido Kaminer1, Yaakov Lumer, Mordechai Segev

  • 1Physics Department and Solid State Institute, Technion, 2011, Haifa 32000, Israel.

Optics Express
|November 24, 2011
PubMed
Summary
This summary is machine-generated.

Accelerating wave packets in dispersive media break up due to causality. Decelerating pulses can reach zero group velocity, while accelerating ones face a critical point leading to inevitable breakup.

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Area of Science:

  • Wave propagation in dispersive media
  • Nonlinear optics
  • Quantum optics

Background:

  • Temporal Airy wave packets exhibit unique accelerating properties.
  • Dispersive media affect wave packet dynamics.
  • Causality is a fundamental principle governing wave propagation.

Purpose of the Study:

  • Investigate the impact of causality on accelerating and decelerating temporal Airy wave packets.
  • Analyze the conditions for critical points and their experimental observation.
  • Examine causality effects in nonlinear media.

Main Methods:

  • Theoretical analysis of wave packet dynamics.
  • Mathematical modeling of pulse propagation.
  • Exploration of causality constraints.

Main Results:

  • Decelerating pulses can asymptotically approach zero group velocity.
  • Accelerating pulses inevitably break up after a critical point.
  • Causality imposes similar constraints on accelerating pulses in Kerr-like nonlinear media.

Conclusions:

  • Causality fundamentally limits the acceleration of wave packets in dispersive media.
  • A critical point exists for accelerating pulses, leading to their breakup.
  • Understanding these effects is crucial for controlling light propagation.