Berlin/Heidelberg: Springer Science and Business Media LLC
摘要:
摘要： Recent study on optical-field-ionization collisional-excitation extreme-ultraviolet lasing of Ni-like krypton at 32.8 nm pumped by a 100-TW laser system with an optically preformed plasma waveguide is reported. By using a 9-mm-long pure krypton plasma waveguide fabricated with the axicon-ignitor-heater scheme, the 32.8-nm extreme-ultraviolet laser provided an average output of 10 12 photons/pulse at pump energy of 1 J, more than one order of magnitude enhancement relative to the previous results with the same scheme at pump energy of 235 mJ. It is also found the far-field pattern of laser beams varies from a single peak profile at low pump energy to an annular profile at high pump energy due to over-ionization of krypton ions at the center of the plasma channel. 其他題名： Appl. Phys. B 出版者： Berlin/Heidelberg: Springer Science and Business Media LLC 出版日期： 2012-03-01 出處： Applied Physics B, 2012-03, Vol.106 (4), p.817-822 資源來源： Academic Search Premier (Ebsco) 版權： Springer-Verlag 2011 識別號： ISSN: 0946-2171 識別號： EISSN: 1432-0649 識別號： DOI: 10.1007/s00340-011-4810-y
