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Millijoule-level phase-stabilized few-optical-cycle infrared parametric source.

C Vozzi1, F Calegari, E Benedetti

  • 1National Laboratory for Ultrafast and Ultraintense Optical Science, CNR-INFM, Department of Physics, Politecnico di Milano, Milan, Italy. caterina.vozzi@polimi.it

Optics Letters
|October 17, 2007
PubMed
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Researchers generated ultrabroadband, self-phase-stabilized near-infrared pulses using advanced optical techniques. These powerful, short pulses are ideal for creating isolated attosecond pulses and driving high-order harmonic generation.

Area of Science:

  • Nonlinear Optics
  • Ultrafast Lasers
  • Attosecond Science

Background:

  • Generating ultrabroadband light is crucial for ultrafast science.
  • Controlling pulse properties like phase and energy is essential for advanced applications.

Purpose of the Study:

  • To develop a method for generating ultrabroadband, self-phase-stabilized near-infrared (near-IR) pulses.
  • To demonstrate the suitability of these pulses for high-order harmonic generation (HHG) and isolated attosecond pulse (IAP) production.

Main Methods:

  • Difference-frequency generation (DFG) of a filament-broadened supercontinuum.
  • Two-stage optical parametric amplification (OPA).

Main Results:

  • Generation of ultrabroadband, self-phase-stabilized near-IR pulses.

Related Experiment Videos

  • Achieved pulse energies up to 1.2 mJ.
  • Demonstrated pulse durations as short as 17 femtoseconds (fs).

    • Conclusions:

    • The developed source provides high-energy, ultrashort pulses.
    • This source is well-suited as a driver for HHG and IAP production.
    • Enables advancements in ultrafast spectroscopy and attosecond science.