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Journal Article

Time-resolved near-edge x-ray absorption fine structure spectroscopy on photo-induced phase transitions using a tabletop soft-x-ray spectrometer.

MPS-Authors
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Rajkovic,  I.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for biophysical chemistry, Max Planck Society;

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Techert,  S.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for biophysical chemistry, Max Planck Society;

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Citation

Grossmann, P., Pohl, J., Rajkovic, I., Barkusky, F., Jooss, V., Techert, S., et al. (2012). Time-resolved near-edge x-ray absorption fine structure spectroscopy on photo-induced phase transitions using a tabletop soft-x-ray spectrometer. Review of Scientific Instruments, 83(5): 053110. doi:10.1063/1.4718936.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-A0D9-2
Abstract
We present a table-top soft-x-ray spectrometer for the wavelength range λ = 1–5 nm based on a stable laser-driven x-ray source, making use of a gas-puff target. With this setup, optical light- pump/soft-x-ray probe near-edge x-ray absorption fine structure (NEXAFS) experiments with a temporal resolution of about 230 ps are feasible. Pump-probe NEXAFS measurements were car- ried out in the “water-window” region (2.28 nm–4.36 nm) on the manganite Pr 0.7 Ca 0.3 MnO 3 , investigating diminutive changes of the oxygen K edge that derive from an optically induced phase transition. The results show the practicability of the table-top soft-x-ray spectrometer on demand- ing investigations so far exclusively conducted at synchrotron radiation sources.