Temporal resolution in pump-probe experiments enhanced by noisy pulses

28th International Conference on Photonic, Electronic and Atomic Collisions

Meyer, Kristina^1 ; Ott, Christian^1 ; Raith, Philipp^1 ; Kaldun, Andreas^1 ; Jiang, Yuhai^2 ; Senftleben, Arne^1 ; Kurka, Moritz^1 ; Moshammer, Robert^1 ; Ullrich, Joachim^1,3 ; Pfeifer, Thomas^1

Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, Heidelberg

69117, Germany^1

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai

201210, China^2

Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, Braunschweig

38116, Germany^3

关键词: Correlated noise;    Pulse durations;    Pump-and-probe;    Pump-probe experiments;    Temporal resolution;    Time-scales;    Varying lights;    Wave-packet dynamics;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/3/032037/pdf
DOI  :  10.1088/1742-6596/488/3/032037

来源: IOP

【 摘 要 】

We show that statistically varying light fields as they are provided by Free-Electron Laser (FEL) sources can be used to enhance the temporal resolution in pump-probe experiments. Dynamics on time scales more than a factor of ten shorter than the average pulse duration can be measured. The mechanism is based on correlated noise in pump and probe pulses and is demonstrated for the example of wave-packet dynamics in D2molecules as investigated in a recent experiment.