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Cord Arnold

Coordinator of Rydberg seminars

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Two phase-matching regimes in high-order harmonic generation

Author

  • E. Appi
  • R. Weissenbilder
  • B. Nagyillés
  • Z. Diveki
  • J. Peschel
  • B. Farkas
  • M. Plach
  • F. Vismarra
  • V. Poulain
  • N. Weber
  • C. L. Arnold
  • K. Varjú
  • S. Kahaly
  • P. Eng-Johnsson
  • A. L’Huillier
Show all

Summary, in English

High-order harmonic generation (HHG) provides scalable sources of coherent extreme ultraviolet radiation with pulse duration down to the attosecond time scale. Efficient HHG requires the constructive interplay between microscopic and macroscopic effects in the generation volume, which can be achieved over a large range of experimental parameters from the driving field properties to those of the generating medium. Here, we present a systematic study of the harmonic yield as a function of gas pressure and medium length. Two regimes for optimum yield are identified, supporting the predictions of a recently proposed analytical model. Our observations are independent on the focusing geometry and, to a large extent, on the pulse duration and laser intensity, providing a versatile approach to HHG optimization.

Department/s

  • Atomic Physics
  • LTH Profile Area: Photon Science and Technology
  • LU Profile Area: Light and Materials
  • Department of Physics
  • NanoLund: Centre for Nanoscience
  • LTH Profile Area: Nanoscience and Semiconductor Technology
  • Lund Laser Centre, LLC

Publishing year

2023-09

Language

English

Pages

31687-31697

Publication/Series

Optics Express

Volume

31

Issue

20

Document type

Journal article

Publisher

Optical Society of America

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1094-4087