Developments and applications of optical-field-ionization x-ray lasers at IAMS

Jiunn Yuan Lin, Ming Chang Chou, Ping Hsun Lin, Ru Ping Huang, Chang Tai Huang, Szu Yuan Chen, Hsu Hsin Chu, Jyhpyng Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We experimentally demonstrate the amplification of optical-field-ionization soft x-ray lasers in an optically preformed plasma waveguide for pure xenon, krypton, and argon gases, respectively. The lasing photon number of Ni-like Kr laser at 32.8 nm generated in waveguide is dramatically enhanced by about three orders of magnitude in comparison to that without plasma waveguide, resulting in a photon number of 8×l010 and an energy conversion efficiency of 2><10'6 with a pump pulse of just 235 mJ. In addition to the 46.9 nm main lasing line for Ne-like argon, the 45.1 and 46.5 nm lasing lines are also observed, indicative of the strong enhancement effect and the large gas density in the plasma waveguide. With this technique multispecies parallel x-ray lasing is also demonstrated in a Kr-Ar mixed-gas waveguide. By seeding optical-field-ionization plasma with high harmonic signals, 32.8-nm Kr laser output can be further improved to produce brighter and better collimated x-ray laser beams. Comparing with the same laser seeded only with spontaneous emission, seeding with high harmonics yields much smaller divergence, enhanced spatial coherence, and controlled polarization. With the illumination of high-brightness 32.8-nm x-ray laser pulses, single-shot x-ray digital holographic microscopy with an adjustable field of view and magnification is demonstrated successfully. The ultrashort x-ray pulse duration combined with single-shot capability offers great advantage for flash imaging of delicate samples.

Original languageEnglish
Title of host publicationSoft X-Ray Lasers and Applications VIII
StatePublished - 2009
EventSoft X-Ray Lasers and Applications VIII - San Diego, CA, United States
Duration: 4 Aug 20096 Aug 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceSoft X-Ray Lasers and Applications VIII
Country/TerritoryUnited States
CitySan Diego, CA


  • Optical field ionization
  • Plasma waveguide
  • X-ray digital holographic microscopy
  • X-ray laser


Dive into the research topics of 'Developments and applications of optical-field-ionization x-ray lasers at IAMS'. Together they form a unique fingerprint.

Cite this