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

研究成果: 書貢獻/報告類型會議論文篇章同行評審


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.

主出版物標題Soft X-Ray Lasers and Applications VIII
出版狀態已出版 - 2009
事件Soft X-Ray Lasers and Applications VIII - San Diego, CA, United States
持續時間: 4 8月 20096 8月 2009


名字Proceedings of SPIE - The International Society for Optical Engineering


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國家/地區United States
城市San Diego, CA


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