Researchers from the ALF group at USAL participated in the HILAS congress

Researchers from the ALF group at USAL, including Carlos Hernández García, Marina Fernández Galán, and Rodrigo Hernández Martín, participated in the High-Intensity Lasers and High-Field Phenomena (HILAS) congress, which took place from March 12th to March 14th in Vienna.

HILAS serves as a prominent platform for scientists and researchers to explore cutting-edge advancements and discoveries in the field of high-intensity lasers and high-field phenomena. The congress provides a forum for discussions, presentations, and collaborations among experts in various disciplines, including physics, optics, engineering, and materials science. Through keynote speeches, panel sessions, and workshops, HILAS facilitates the exchange of knowledge and fosters innovation in this rapidly evolving field.

The following works have been presented:

  • Simulating Macroscopic High-order Harmonic Generation Driven by Structured Laser Beams Using Artificial Intelligence, Carlos Hernandez-Garcia; Universidad de Salamanca, Spain.
    • Employing artificial intelligence, we integrate microscopic quantum computations based on the time dependent Schrödinger equation with macroscopic physics, to unveil hidden signatures in the ultrafast electronic dynamics of high-order harmonic generation by structured laser beams.
  • Compact Generation of Isolated Attosecond Pulses Driven by Self-compressed Subcycle Waveforms, Marina F. Galán1, Javier Serrano1, Enrique Conejero Jarque1, Rocío Borrego-Varillas2, Matteo Lucchini3, Maurizio Reduzzi3 , Mauro Nisoli3 , Christian Brahms4, John C. Travers4, Carlos Hernandez-Garcia1, Julio San Roman1; 1 Universidad de Salamanca, Spain; 2 IFN-CNR, Italy; 3 Politecnico di Milano, Italy; 4 Heriot-Watt University, United Kingdom.

We theoretically demonstrate a compact and robust scheme for the direct generation of extreme ultraviolet isolated attosecond pulses from high-order harmonics driven by self-compressed subcycle waveforms produced in a gas-filled hollow capillary fiber.

  • Generation of high-order harmonic spatiotemporal optical vortices, Rodrigo Martín Hernández1,2, Guan Gui3, Luis Plaja1,2, Henry K. Kapteyn3, Margaret M. Murnane3, Miguel A. Porras4, Chen-Ting Liao3,5, Carlos Hernandez-Garcia1,2; 1 Grupo de Investigación en Aplicaciones del Láser y Fotónica. Departamento de Física Aplicada, Universidad de Salamanca, Spain; 2 Unidad de Excelencia en Luz y Materia Estructuradas (LUMES), Universidad de Salamanca, Spain; 3 JILA and Department of Physics, University of Colorado and NIST, USA; 4 Grupo de Sistemas Complejos, ETSIME, Universidad Politécnica de Madrid, Spain; 5 Department of Physics, Indiana University, USA.

We theoretically and experimentally demonstrate the generation of high-topological charge, extreme-ultraviolet (EUV) spatiotemporal optical vortices (STOV) from high-order harmonic generation. EUV-STOVs are unique structured light tools for exploring ultrafast topological laser-matter interactions.

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