TY - GEN
T1 - Atomic processes in the LPP and LA-DPP EUV sources
AU - Sasaki, Akira
AU - Nishihara, Katsunobu
AU - Sunahara, Atsushi
AU - Furukawa, Hiroyuki
AU - Nishikawa, Takeshi
AU - Koike, Fumihiro
PY - 2009
Y1 - 2009
N2 - We investigate characteristic feature of the atomic radiation from tin plasmas, which allow one to obtain high power EUV emission at λ=13.5nm efficiently We develop a collisional radiative model of tin ions to calculate steady-state and time dependent ion abundance, level population, and coefficients of radiative transfer of the plasma. The model, which is based atomic data calculated using the Hullac code is refined both theoretically and experimentally. Calculation of the spectral emissivity and opacity are carried out over a wide range of plasma density and temperature, and pumping conditions to obtain high conversion efficiency are discussed.
AB - We investigate characteristic feature of the atomic radiation from tin plasmas, which allow one to obtain high power EUV emission at λ=13.5nm efficiently We develop a collisional radiative model of tin ions to calculate steady-state and time dependent ion abundance, level population, and coefficients of radiative transfer of the plasma. The model, which is based atomic data calculated using the Hullac code is refined both theoretically and experimentally. Calculation of the spectral emissivity and opacity are carried out over a wide range of plasma density and temperature, and pumping conditions to obtain high conversion efficiency are discussed.
KW - Atomic process
KW - Atomic spectroscopy
KW - EUV source
KW - Multiple charged ion
KW - Radiation hydrodynamics
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U2 - 10.1117/12.814026
DO - 10.1117/12.814026
M3 - Conference contribution
AN - SCOPUS:67149130591
SN - 9780819475244
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Alternative Lithographic Technologies
T2 - Alternative Lithographic Technologies
Y2 - 24 February 2009 through 26 February 2009
ER -