Characteristic of capillary discharge soft x-ray laser in Ne-like Ar

Y. L. Cheng; X. Q. Zhang; H. G. Gou; Q. S. Zhu; Y. P. Zhao; Y. Xie; Q. Wang

doi:10.1117/12.782965

21 November 2007 Characteristic of capillary discharge soft x-ray laser in Ne-like Ar

Y. L. Cheng, X. Q. Zhang, H. G. Gou, Q. S. Zhu, Y. P. Zhao, Y. Xie, Q. Wang

Proceedings Volume 6724, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems; 67241U (2007) https://doi.org/10.1117/12.782965
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

Ne-like Ar lasers operating at a wavelength of 46.9 nm have been developed by using of a three-coaxial-line Blumlein transmission line (BTL). The discharge system consists of a Marx generator with maximum charging voltage of 300kV, a Blumlein transmission line, as well as a pre-pulse circuit that provide maximum voltage of 20kV. Soft x-ray amplification in Ne-like Ar at 46.9nm with pulse energy of ~10μJ and duration time of 2ns has been achieved. The plasma columns are pumped by a 20~26kA current pulse with 130ns half-cycle duration in a 3.1mm-diameter and 19cm-length capillary channels filled with pre-ionized Ar gas at pressure of 30-40Pa. The beam profile was observed to have an annular shape and the peak-to-peak divergence is about 4.5 mrad. This new type of short wavelength laser is of interest for numerous applications such as materials ablation and nanopatterning in micro-technology.

Citation Download Citation

Y. L. Cheng, X. Q. Zhang, H. G. Gou, Q. S. Zhu, Y. P. Zhao, Y. Xie, and Q. Wang "Characteristic of capillary discharge soft x-ray laser in Ne-like Ar", Proc. SPIE 6724, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, 67241U (21 November 2007); https://doi.org/10.1117/12.782965

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