A pulse-train laser driven XUV source for picosecond pump–probe experiments in the water window

High average power, highly brilliant laser-produced plasma source for soft X-ray spectroscopy

“…With a polychromatic source, X-ray absorption measurements can be performed by placing the sample in the beam and afterwards using a spectrograph for the recording of the spectrum. 8,22 The most important prerequisites are that the spectrograph has a sufficient energy resolution and that the sample has a well matched thickness in order to provide a satisfactory contrast at the absorption edge of interest. For the X-ray source, the requirements are a broad bandwidth, high brilliance, and stability.…”

Laser Plasma Soft X‐Ray Source in the Water Window Based on Cryogenic Targets

“…A laser‐plasma X‐ray source is a high‐brightness point light source that uses X‐rays from high‐temperature, high‐density plasma generated when a high‐peak power laser is focused on a target. Various target materials, such as copper , ytterbium , bismuth or other metals, carbon , nitrogen , argon , and so on, were employed to generate water‐window soft X‐rays with laser‐plasma sources. Particularly, nitrogen and argon, being inert gases at normal temperature, are called “deposition‐free targets” because their vapors do not deposit on the optical system near the light source, as opposed to metal and carbon targets.…”

Toward time-resolved soft X-ray microscopy using pulsed fs-high-harmonic radiation

“…In contrast, laboratory extreme ultra-violet (XUV) or X-ray sources like laser generated plasmas, X-ray lasers or high-harmonic generation (HHG) are driven by visible laser systems that inherently own the required synchronization for pump-probe experiments. The temporal shape of XUV emission from laser generated plasmas due to recombination or relaxation processes is mainly determined by the plasma dynamics and often found to be in the order of several picosecond [11,12], even if ultrashort fs-laser systems are used for plasma formation.…”