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Cord Arnold

Coordinator of Rydberg seminars

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How to optimize high-order harmonic generation in gases

Author

  • R. Weissenbilder
  • S. Carlström
  • L. Rego
  • C. Guo
  • C. M. Heyl
  • P. Smorenburg
  • E. Constant
  • C. L. Arnold
  • A. L’Huillier

Summary, in English

High-order harmonic generation (HHG) in gases leads to short-pulse extreme ultraviolet (XUV) radiation that is useful in a number of applications, such as attosecond science and nanoscale imaging. However, this process depends on many parameters, and there is still no consensus on how to choose the target geometry to optimize the source efficiency. We review the physics of HHG with emphasis on the macroscopic aspects of the nonlinear interaction, discussing the influence of length of medium, pressure, and intensity of the driving laser on the HHG conversion efficiency. Efficient HHG can be realized over a large range of pressures and medium lengths, if these follow a certain hyperbolic equation. This explains the large versatility in gas target designs for efficient HHG and provides design guidance for future high-flux XUV sources.

Department/s

  • Atomic Physics
  • Mathematical Physics
  • NanoLund: Centre for Nanoscience
  • LTH Profile Area: Photon Science and Technology
  • LTH Profile Area: Nanoscience and Semiconductor Technology

Publishing year

2022-11

Language

English

Pages

713-722

Publication/Series

Nature Reviews Physics

Volume

4

Issue

11

Document type

Journal article

Publisher

Nature Publishing Group

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 2522-5820