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Proceedings Paper

Developments and applications of optical-field-ionization x-ray lasers at IAMS
Author(s): Jiunn-Yuan Lin; Ming-Chang Chou; Ping-Hsun Lin; Ru-Ping Huang; Chang-Tai Huang; Szu-Yuan Chen; Hsu-Hsin Chu; Jyhpyng Wang
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Paper Abstract

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 8×1010 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.

Paper Details

Date Published: 29 September 2009
PDF: 9 pages
Proc. SPIE 7451, Soft X-Ray Lasers and Applications VIII, 74510X (29 September 2009); doi: 10.1117/12.825750
Show Author Affiliations
Jiunn-Yuan Lin, National Chung Cheng Univ. (Taiwan)
Ming-Chang Chou, Institute of Atomic and Molecular Sciences (Taiwan)
Ping-Hsun Lin, Institute of Atomic and Molecular Sciences (Taiwan)
National Taiwan Univ. (Taiwan)
Ru-Ping Huang, National Chung Cheng Univ. (Taiwan)
Institute of Atomic and Molecular Sciences (Taiwan)
Chang-Tai Huang, National Chung Cheng Univ. (Taiwan)
Institute of Atomic and Molecular Sciences (Taiwan)
Szu-Yuan Chen, Institute of Atomic and Molecular Sciences (Taiwan)
National Central Univ. (Taiwan)
Hsu-Hsin Chu, National Central Univ. (Taiwan)
Jyhpyng Wang, Institute of Atomic and Molecular Sciences (Taiwan)
National Taiwan Univ. (Taiwan)
National Central Univ. (Taiwan)


Published in SPIE Proceedings Vol. 7451:
Soft X-Ray Lasers and Applications VIII
James Dunn; Gregory J. Tallents, Editor(s)

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