4.8 Article

Observation of Seeded Mn Kβ Stimulated X-Ray Emission Using Two-Color X-Ray Free-Electron Laser Pulses

Journal

PHYSICAL REVIEW LETTERS
Volume 125, Issue 3, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.125.037404

Keywords

-

Funding

  1. U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-76SF00515]
  2. DOE Office of Biological and Environmental Research
  3. National Institutes of Health, National Institute of General Medical Sciences [P41GM103393]
  4. Office of Science, Office of Basic Energy Sciences (OBES), Division of Chemical Sciences, Geosciences, and Biosciences (CSGB) of the Department of Energy (DOE) [DE-AC02-05CH11231]
  5. National Institutes of Health (NIH) [GM055302, GM110501, GM126289]
  6. Ruth L. Kirschstein National Research Service Award [F32GM116423]
  7. Human Frontiers Science Project Award [RGP0063/2013 310]
  8. Department of Energy, Laboratory Directed Research and Development program at SLAC National Accelerator Laboratory [DE-AC02-76SF00515]
  9. SLAC National Accelerator Laboratory

Ask authors/readers for more resources

K beta x-ray emission spectroscopy is a powerful probe for electronic structure analysis of 3d transition metal systems and their ultrafast dynamics. Selectively enhancing specific spectral regions would increase this sensitivity and provide fundamentally new insights. Recently we reported the observation and analysis of K alpha amplified spontaneous x-ray emission from Mn solutions using an x-ray free-electron laser to create the is core-hole population inversion [Kroll et al., Phys. Rev. Lett. 120, 133203 (2018)]. To apply this new approach to the chemically more sensitive but much weaker K beta x-ray emission lines requires a mechanism to outcompete the dominant amplification of the K alpha emission. Here we report the observation of seeded amplified K beta x-ray emission from a NaMnO4 solution using two colors of x-ray free-electron laser pulses, one to create the is core-hole population inversion and the other to seed the amplified K beta emission. Comparing the observed seeded amplified K beta emission signal with that from conventional K beta emission into the same solid angle, we obtain a signal enhancement of more than 10(5). Our findings are the first important step of enhancing and controlling the emission of selected final states of the K beta spectrum with applications in chemical and materials science.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available