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

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

Published on: July 12, 2017

A high-flux high-order harmonic source.

P Rudawski1, C M Heyl, F Brizuela

  • 1Department of Physics, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden. piotr.rudawski@fysik.lth.se

The Review of Scientific Instruments
|August 2, 2013
PubMed
Summary
This summary is machine-generated.

We optimized high-order harmonic generation (HHG) in gases using a Ti:Sapphire laser, achieving high pulse energies up to 200 nJ for soft X-ray studies. This method enhances nonlinear process research in the soft X-ray spectrum.

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Last Updated: May 9, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Published on: July 12, 2017

Assembly and Characterization of an External Driver for the Generation of Sub-Kilohertz Oscillatory Flow in Microchannels
08:32

Assembly and Characterization of an External Driver for the Generation of Sub-Kilohertz Oscillatory Flow in Microchannels

Published on: January 28, 2022

Area of Science:

  • Atomic, Molecular, and Optical Physics
  • Laser Physics
  • X-ray Science

Background:

  • High-order harmonic generation (HHG) is crucial for producing coherent soft X-ray radiation.
  • Previous HHG studies often faced limitations in pulse energy and conversion efficiency.
  • Soft X-ray spectroscopy enables advanced research in materials science and biology.

Purpose of the Study:

  • To develop and implement an experimental strategy for generating high-energy HHG in gases.
  • To optimize HHG parameters for maximizing pulse energy and harmonic order in the soft X-ray region.
  • To theoretically investigate macroscopic conditions influencing conversion efficiency and energy optimization.

Main Methods:

  • Utilizing a high-energy Ti:Sapphire laser focused into argon or neon gas cells.
  • Employing an automated control system to optimize multiple generation parameters.
  • Using a loose focusing geometry (f#≈400) with a 20 mm medium length.

Main Results:

  • Achieved high pulse energies of 200 nJ in argon and 20 nJ in neon.
  • Obtained HHG with good spatial properties.
  • Demonstrated successful optimization of HHG for high-energy laser systems.

Conclusions:

  • The developed experimental strategy effectively generates high-energy HHG in gases.
  • Optimized parameters lead to significant improvements in pulse energy and harmonic order.
  • The findings provide a pathway for advanced nonlinear process studies in the soft X-ray region.