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Proceedings Paper

Ultrashort pulse driven optical-field-ionization x-ray lasers
Author(s): Jiunn-Yuan Lin; Ming-Chang Chou; Ping-Hsun Lin; Chih-An Lin; Szu-Yuan Chen; Jyhpyng Wang
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Paper Abstract

Efficient optical-field-ionization x-ray lasers driven by femtosecond laser pulses have been demonstrated in clustered gas jets. With a tight focusing configuration, near saturation outputs of Pd-like xenon laser at 41.8 nm and Ni-like krypton laser at 32.8 nm are generated at low pump energy of 200 mJ. By using the axicon-ignitor-heater scheme to produce a 9-mm-long plasma waveguide in a pure krypton gas jet, the lasing photon number of Ni-like Kr laser at 32.8 nm 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. Besides for producing various OFI collisional-excitation x-ray lasers of sufficient photon number for practical applications, an optically-preformed plasma waveguide may also be a favorable choice for achieving OFI recombination x-ray lasers and inner-shell x-ray lasers.

Paper Details

Date Published: 13 September 2007
PDF: 10 pages
Proc. SPIE 6702, Soft X-Ray Lasers and Applications VII, 670206 (13 September 2007); doi: 10.1117/12.733440
Show Author Affiliations
Jiunn-Yuan Lin, National Chung Cheng Univ. (Taiwan)
Ming-Chang Chou, National Chung Cheng Univ. (Taiwan)
Institute of Atomic and Molecular Sciences, Academia Sinica (Taiwan)
Ping-Hsun Lin, National Taiwan Univ. (Taiwan)
National Central Univ. (Taiwan)
Chih-An Lin, National Chung Cheng Univ. (Taiwan)
Institute of Atomic and Molecular Sciences, Academia Sinica (Taiwan)
Szu-Yuan Chen, Institute of Atomic and Molecular Sciences, Academia Sinica (Taiwan)
National Central Univ. (Taiwan)
Jyhpyng Wang, Institute of Atomic and Molecular Sciences, Academia Sinica (Taiwan)
National Taiwan Univ. (Taiwan)
National Central Univ. (Taiwan)


Published in SPIE Proceedings Vol. 6702:
Soft X-Ray Lasers and Applications VII
Gregory J. Tallents; James Dunn, Editor(s)

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