Bonn 2025 – scientific programme

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K: Fachverband Kurzzeit- und angewandte Laserphysik

K 6: Poster

K 6.8: Poster

Tuesday, March 11, 2025, 14:00–16:00, Tent

Exploring Intensity Correlations in Strong-Field Frequency Conversion — •Carlo Kleine, Mohamed Attia, Hannah Schlenker, Christian Ott, and Thomas Pfeifer — Max-Planck-Institut für Kernphysik, Heidelberg, Deutschland

The interaction of light with matter using short, intense laser pulses is a key focus in many areas of research. These pulses enable the investigation of electronic and nuclear dynamics in atoms and molecules, as well as the active control of small quantum systems. Typically, these interactions have been successfully described using a classical electromagnetic field. However, recent experimental findings highlight the necessity of a quantum mechanical description of the field, particularly in extreme nonlinear processes such as high-order harmonic generation (Tsatrafyllis et al, Nat. Commun. 8(1) 2017). This has been demonstrated by investigating the anticorrelation between the transmitted intensity of the driving near-infrared (IR) and the generated extreme ultraviolet (XUV) light. These studies emphasize the importance of exploring intensity correlations in strong-field frequency conversion processes. In this poster, the intensity correlation between perturbative harmonics in the visible and near IR is investigated and analyzed, focusing on both correlation and anticorrelation.

Keywords: Short laser pulses; Correlaction; Quantum Optic