Lasing of a Cavity Based X-ray Source

  1. Patrick Rauer
  2. Immo Bahns
  3. Bertram Friedrich
  4. Sara Casalbuoni
  5. Massimiliano Di Felice
  6. Martin Dommach
  7. Idoia Freijo Martin
  8. Wolfgang Freund
  9. Jan Grünert
  10. Marc Guetg
  11. Ivars Karpics
  12. Suren Karabekyan
  13. Andreas Koch
  14. Naresh Kujala
  15. Daniele La Civita
  16. Jia Liu
  17. Theophilos Maltezopoulos
  18. Mikako Makita
  19. Frank Mayet
  20. Lukas Müller
  21. Benoit Rio
  22. Liubov Samoylova
  23. Silja Schmidtchen
  24. Matthias Scholz
  25. Alessandro Silenzi
  26. Vivienne Strauch
  27. Daniel Thoden
  28. Thorsten Wohlenberg
  29. Maurizio Vannoni
  30. Fan Yang
  31. Winfried Decking
  32. Jörg Rossbach
  33. Harald Sinn
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Abstract

Cavity-based X-ray Free Electron Lasers (CBXFELs) promise to transform the field of hard X-ray science by delivering radiation with exceptional brilliance, stability, and full three-dimensional coherence. At the European XFEL, we have realized a proof-of-concept CBXFEL featuring a 132.8 m round-trip hard X-ray cavity using diamond crystals in Bragg reflection. Here, we report lasing with multi-pass gain in an X-ray cavity, marking a major milestone for the field. Our results establish the feasibility of CBXFELs and open the door to next-generation X-ray science requiring unprecedented spectral purity and stability.

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  1. Version published to 10.21203/rs.3.rs-7274597/v1 on Research Square