TY - JOUR
T1 - Warm photoionized plasmas created by soft-x-ray laser irradiation of solid targets
AU - Berrill, Mark
AU - Brizuela, Fernando
AU - Langdon, Benjamin
AU - Bravo, Herman
AU - Menoni, Carmen S.
AU - Rocca, Jorge J.
PY - 2008/7
Y1 - 2008/7
N2 - We report the study of warm plasmas created by soft-x-ray laser irradiation of solid targets in which single-photon photoionization is the dominant energy absorption mechanism. Low-absorption (silicon, Z=14) and high-absorption (chromium, Z=24, and silver, Z=47) targets were heated by ∼1 ns duration pulses from a 46.9 nm wavelength soft-x-ray laser. The spectra obtained agree with 1 1/2-dimension simulations in showing that the Si plasmas are significantly colder and less ionized, confirming that in contrast to plasmas created by optical lasers the plasma properties a largely determined by the absorption coefficient of the target material.
AB - We report the study of warm plasmas created by soft-x-ray laser irradiation of solid targets in which single-photon photoionization is the dominant energy absorption mechanism. Low-absorption (silicon, Z=14) and high-absorption (chromium, Z=24, and silver, Z=47) targets were heated by ∼1 ns duration pulses from a 46.9 nm wavelength soft-x-ray laser. The spectra obtained agree with 1 1/2-dimension simulations in showing that the Si plasmas are significantly colder and less ionized, confirming that in contrast to plasmas created by optical lasers the plasma properties a largely determined by the absorption coefficient of the target material.
UR - http://www.scopus.com/inward/record.url?scp=51849095997&partnerID=8YFLogxK
U2 - 10.1364/JOSAB.25.000B32
DO - 10.1364/JOSAB.25.000B32
M3 - Article
AN - SCOPUS:51849095997
SN - 0740-3224
VL - 25
SP - B32-B38
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
IS - 7
ER -