A simple instrument to find spatiotemporal overlap of optical/X-ray light at free-electron lasers

A compact and robust diagnostic to determine spatial and temporal overlap between X-ray free-electron laser and optical laser pulses was developed and evaluated using monochromatic X-rays from the Linac Coherent Light Source. It was used to determine temporal overlap with a resolution of ∼ 10   fs, despite the large pulse energy fluctuations of the monochromatic X-ray pulses, and covers a wide optical wavelength range from ultraviolet to near-infrared with a single configuration.

Source: Journal of Synchrotron Radiation - April 4, 2019 Category: Physics Authors: Sato, T. Glownia, J.M. Ware, M.R. Chollet, M. Nelson, S. Zhu, D. Tags: X-ray free-electron lasers optical laser pulses pump-probe experiments spatial overlap temporal overlap research papers Source Type: research