Ultrashort pulse driven optical-field-ionization x-ray lasers

Jiunn-Yuan Lin; Ming-Chang Chou; Ping-Hsun Lin; Chih-An Lin; Szu-Yuan Chen; Jyhpyng Wang

doi:10.1117/12.733440

13 September 2007 Ultrashort pulse driven optical-field-ionization x-ray lasers

Jiunn-Yuan Lin, Ming-Chang Chou, Ping-Hsun Lin, Chih-An Lin, Szu-Yuan Chen, Jyhpyng Wang

Proceedings Volume 6702, Soft X-Ray Lasers and Applications VII; 670206 (2007) https://doi.org/10.1117/12.733440
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

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.

Citation Download Citation

Jiunn-Yuan Lin, Ming-Chang Chou, Ping-Hsun Lin, Chih-An Lin, Szu-Yuan Chen, and Jyhpyng Wang "Ultrashort pulse driven optical-field-ionization x-ray lasers", Proc. SPIE 6702, Soft X-Ray Lasers and Applications VII, 670206 (13 September 2007); https://doi.org/10.1117/12.733440

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