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Twin-arm spectrometer

Schematic view of the setup with laser system and pump beamline (top), source and spectrometer (bottom).
Lupe

The twin-arm spectrometer enables the simultaneous recording of sample and reference spectra as well as an image of the source for monitoring purposes on the CCD camera. Two modes are available, continuous and single shot mode, depending on the number of detected photons. Typical measurement times are still limited by the read-out speed of the camera, resulting in minutes to hours for the collection of a state-of-the-art NEXAFS spectrum.

 

Contact: Ioanna Mantouvalou, Adrian Jonas

 

Relevant publications:

A. Jonas, H. Stiel, L. Glöggler, D. Dahm, K. Dammer, B. Kanngießer, and I. Mantouvalou, Towards Poisson noise limited optical pump soft X-ray probe NEXAFS spectroscopy using a laser-produced plasma source, Optics Express, Vol. 27 (Issue 25, pp. 36524-36537), 2019

I. Mantouvalou, K. Witte, W. Martyanov, A. Jonas, D. Grötzsch, C. Streeck, H. Löchel, I. Rudolph, A. Erko, H. Stiel, and B. Kanngießer, Applied Physics Letters 108, 201106 (2016)

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