Speaker
Description
Single-Shot Coherent Diffractive Imaging (CDI) has become a mature tool to capture the structure and dynamics of nanoscale systems such as viruses [1], nanoparticles [2] and helium droplets in free flight [3]. The conventional application of the underlying single-shot imaging implies that the imaging pulse interacts instantly and perturbatively with the target such that the diffraction image reflects the target shape and (unperturbed) optical properties via the linear-response field propagation through (and around) the target. Especially the advancing capabilities of intense XUV light sources render the question important, at which point non-linear quantum state dynamics driven by the imaging pulse become significant [4]. In this talk I will discuss an attempt to tackle this question theoretically by means of scattering simulations that include field propagation and local quantum state dynamics for the example of Helium droplets [5]. It will be shown for the example of resonantly driven Helium droplets that the departure from the strictly linear regime may open up a wide range of opportunities to track and drive quantum state population dynamics [6]. Emerging routes for associated new metrologies in the field of CDI will be discussed.
[1] M. Seibert et al., Nature 470, 78 (2011)
[2] C. Peltz et al., New J. Phys. 24, 043024 (2022)
[3] Gomez et al., Science 345, 907 (2014)
[4] D. Rupp et al., Nat. Commun. 8, 493 (2017)
[5] B. Kruse et al., J. Phys. Photonics 2, 024007 (2020)
[6] B. Kruse, PhD thesis, University of Rostock (2024)
