Isolated attosecond pulse generation in a semi-infinite gas cell driven by time-gated phase matching

Federico Vismarra; Marina Fernández-Galán; Daniele Mocci; Lorenzo Colaizzi; Víctor Wilfried Segundo; Roberto Boyero-García; Javier Serrano; Enrique Conejero-Jarque; Marta Pini; Lorenzo Mai; Yingxuan Wu; Hans Jakob Wörner; Elisa Appi; Cord L. Arnold; Maurizio Reduzzi; Matteo Lucchini; Julio San Román; Mauro Nisoli; Carlos Hernández-García; Rocío Borrego-Varillas

doi:10.1038/s41377-024-01564-5

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Isolated attosecond pulse generation in a semi-infinite gas cell driven by time-gated phase matching

Original Articles

- Isolated attosecond pulse generation in a semi-infinite gas cell driven by time-gated phase matching
- Light: Science & Applications Vol. 13, Issue 10, Pages: 2192-2200(2024)
- Affiliations：
  
  1.Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
  2.IFN-CNR, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
  3.Grupo de Investigación en Aplicaciones del Láser y Fotónica, Departamento de Física Aplicada, Universidad de Salamanca, E-37008 Salamanca, Spain
  4.Unidad de Excelencia en Luz y Materia Estructuradas (LUMES), Universidad de Salamanca, Salamanca, Spain
  5.Laboratorium für Physikalische Chemie, ETH Zürich, 8093 Zürich, Switzerland
  6.Department of Physics, Lund University, Lund, Sweden
- Author bio：
  
  Mauro Nisoli (mauro.nisoli@polimi.it)
  Carlos Hernández-García (carloshergar@usal.es)
  Rocío Borrego-Varillas (rocio.borregovarillas@cnr.it)
- Funds：
- DOI：10.1038/s41377-024-01564-5
  CLC：
- Published：31 October 2024，
  
  Published Online：20 August 2024，
  
  Received：14 March 2024，
  
  Revised：31 July 2024，
  
  Accepted：04 August 2024
- Accepted：
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Vismarra, F. et al. Isolated attosecond pulse generation in a semi-infinite gas cell driven by time-gated phase matching. Light: Science & Applications, 13, 2192-2200 (2024).
DOI：

Vismarra, F. et al. Isolated attosecond pulse generation in a semi-infinite gas cell driven by time-gated phase matching. Light: Science & Applications, 13, 2192-2200 (2024). DOI： 10.1038/s41377-024-01564-5.

摘要

Abstract

Isolated attosecond pulse (IAP) generation usually involves the use of short-medium gas cells operated at high pressures. In contrast

long-medium schemes at low pressures are commonly perceived as inherently unsuitable for IAP generation due to the nonlinear phenomena that challenge favourable phase-matching conditions. Here we provide clear experimental evidence on the generation of isolated extreme-ultraviolet attosecond pulses in a semi-infinite gas cell

demonstrating the use of extended-medium geometries for effective production of IAPs. To gain a deeper understanding we develop a simulation method for high-order harmonic generation (HHG)

which combines nonlinear propagation with macroscopic HHG solving the 3D time-dependent Schrödinger equation at the single-atom level. Our simulations reveal that the nonlinear spatio-temporal reshaping of the driving field

observed in the experiment as a bright plasma channel

acts as a self-regulating mechanism boosting the phase-matching conditions for the generation of IAPs.

关键词

Keywords

references

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