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Related Experiment Video

Updated: Jun 18, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Generating single attosecond pulse using multi-cycle lasers in a polarization gate.

Valer Tosa1, Katalin Kovacs, Carlo Altucci

  • 1National Institute for Research and Development of Isotopic and Molecular Technologies, Donath str. 65-103, 400293 Cluj-Napoca, Romania. tosa@itim-cj.ro

Optics Express
|November 13, 2009
PubMed
Summary

Researchers generated isolated attosecond pulses using a polarization gating scheme with high laser intensities. This method produces multiple attosecond pulses, crucial for ultrafast science applications.

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Area of Science:

  • Quantum optics
  • Ultrafast laser science
  • Attosecond physics

Background:

  • Generating isolated attosecond pulses is critical for probing ultrafast electron dynamics.
  • Multi-cycle fundamental pulses present challenges in isolating single attosecond pulses.

Purpose of the Study:

  • To analyze macroscopic effects producing isolated attosecond pulses from multi-cycle laser pulses.
  • To investigate the polarization gating scheme for attosecond pulse generation.

Main Methods:

  • Analysis of macroscopic effects in polarization gating.
  • Utilizing a three-dimensional non-adiabatic model.
  • Quantum trajectory phase calculations.

Main Results:

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Last Updated: Jun 18, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

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  • High fundamental peak intensities (0.7-1 PWcm⁻²) produce 3-4 main attosecond pulses.
  • Pulses are generated at the single dipole level on the leading edge of the laser pulse.
  • Physical mechanisms for single attosecond pulse formation were described.

    • Conclusions:

    • The polarization gating scheme is effective for generating attosecond pulses.
    • Optimization and stability analysis are crucial for experimental implementation.
    • Understanding these mechanisms advances ultrafast science and attosecond technology.