@article{a244e74475a747478f1bd2667d4e7b54,
title = "Efficient Excitation of Gain-Saturated Sub-9-nm-Wavelength Tabletop Soft-X-Ray Lasers and Lasing Down to 7.36 nm",
abstract = "We have demonstrated the efficient generation of sub-9-nm-wavelength picosecond laser pulses of microjoule energy at 1-Hz repetition rate with a tabletop laser. Gain-saturated lasing was obtained at λ = 8:85 nm in nickel-like lanthanum ions excited by collisional electron-impact excitation in a precreated plasma column heated by a picosecond optical laser pulse of 4-J energy. Furthermore, isoelectronic scaling along the lanthanide series resulted in lasing at wavelengths as short as λ = 7:36 nm. Simulations show that the collisionally broadened atomic transitions in these dense plasmas can support the amplification of subpicosecond soft-x-ray laser pulses.",
keywords = "Photonics, Plasma Physics",
author = "D. Alessi and Y. Wang and Luther, {B. M.} and L. Yin and Martz, {D. H.} and Woolston, {M. R.} and Y. Liu and M. Berrill and Rocca, {J. J.}",
year = "2011",
doi = "10.1103/PhysRevX.1.021023",
language = "English",
volume = "1",
pages = "1--6",
journal = "Physical Review X",
issn = "2160-3308",
publisher = "American Physical Society",
number = "2",
}