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1998 | 93 | 4 | 631-641
Article title

Studies on Vuv Lasing with Neon-Like Aluminum Ions

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Content
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Languages of publication
EN
Abstracts
EN
The collisional-radiative equilibrium model has been developed in order to investigate the population inversion on aluminum plasma. The population inversion has been established between lower 3s (^{3}P^{0}_{1},^{1}P^{0}_{1}) and upper 3p (^{3}P_{0},^{1}S_{0}) levels. The vacuum ultra-violet lasing on neon-like aluminum ions provides wavelengths of 111.9 nm, 143.2 nm, 157.3 nm. The rate of relative density population, between lower 3s ^{1}P^{0}_{1} and upper 3p ^{3}P_{0} levels, reaches its highest value of 7.16 at the electron density of 10^{19} cm^{-3}. The modified expression of optical escape factor, in the case of Doppler profile, was introduced in the calculation of opacity effect on the gain magnitudes. The resonance radiation trapping by 3d configuration alters drastically the gain values. A gain greater than 1 cm^{-1} was found between lasing levels 3s ^{3}P^{0}_{1} and 3p ^{3}P_{0}. The enhancement of gain was due to the pumping of the upper level by dielectronic recombination process from the ground state of fluorine-like and by the inner-shell ionization process from excited levels of sodium-like ions.
Keywords
EN
Year
Volume
93
Issue
4
Pages
631-641
Physical description
Dates
published
1998-04
received
1997-03-18
(unknown)
1997-07-10
(unknown)
1998-02-12
References
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv93z406kz
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