3d<sup>2</sup> Configuration in six-times-ionized argon, Ar vii

A. G. Trigueiros; F. Callegari; N. Mansur; G. H. Cavalcanti; A. J. Mania; M. Gallardo; J. G. Reyna Almandos

doi:10.1364/JOSAB.18.001718

Journal of the Optical Society of America B
Vol. 18,
Issue 11,
pp. 1718-1721
(2001)
•https://doi.org/10.1364/JOSAB.18.001718

3d² Configuration in six-times-ionized argon, Ar vii

A. G. Trigueiros, F. Callegari, N. Mansur, G. H. Cavalcanti, A. J. Mania, M. Gallardo, and J. G. Reyna Almandos

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A. G. Trigueiros, F. Callegari, N. Mansur, G. H. Cavalcanti, A. J. Mania, M. Gallardo, and J. G. Reyna Almandos, "3d² Configuration in six-times-ionized argon, Ar vii," J. Opt. Soc. Am. B 18, 1718-1721 (2001)

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Abstract

The transition array $2 p^{6} 3 p 3 d - 2 p^{6} 3 d^{2}$ has been identified in the spectrum of magnesium-like Ar vii produced by electrical discharges in the vacuum-ultraviolet region. Twenty-five new transitions have been identified as combinations of levels of this transition array. From these transitions we have determined the levels of the $3 d^{2}$ configuration. It was also possible to determine the $2 p^{6} 3 p 3 d^{1} D_{2}^{o}$ level that was missed in the early research with the Ar vii spectrum. Hartree–Fock calculations with relativistic corrections were used to predict energy levels and transitions. Isoelectronic comparisons along the Mg i sequence are used to support the experimental results.

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Intensitya	Wavelength (Å)	Wave Number (cm^-1)	Transition	$J - J$
3	425.99	234 747.3	$3 p 3 d^{3} P^{0} - 3 d^{2}^{1} S$	1–0
3	450.37	222 039.7	$3 p 3 d^{3} F^{0} - 3 d^{2}^{1} G$	4–4
3	450.93	221 763.9	$3 p 3 d^{3} F^{0} - 3 d^{2}^{1} D$	3–2
6	462.81	216 071.4	$3 p 3 d^{3} D^{0} - 3 d^{2}^{1} D$	2–2
3	474.65	210 681.6	$3 p 3 d^{3} F^{0} - 3 d^{2}^{3} F$	2–3
6	474.96	210 544.0	$3 p 3 d^{3} F^{0} - 3 d^{2}^{3} F$	2–2
6	477.70	209 336.4	$3 p 3 d^{3} F^{0} - 3 d^{2}^{3} F$	3–4
6	477.88	209 257.6	$3 p 3 d^{3} F^{0} - 3 d^{2}^{3} F$	3–3
3	480.49	208 120.9	$3 p 3 d^{3} F^{0} - 3 d^{2}^{3} F$	4–4
12 u	508.83	196 529.3	$3 p 3 d^{3} P^{0} - 3 d^{2}^{3} P$	1–2
12 bl	508.90	196 502.3	$3 p 3 d^{3} P^{0} - 3 d^{2}^{3} P$	1–1
9 bl	509.12	196 417.3	$3 p 3 d^{3} P^{0} - 3 d^{2}^{3} P$	1–0
3	511.37	195 553.1	$3 p 3 d^{3} P^{0} - 3 d^{2}^{3} P$	0–1
3	523.64	190 970.9	$3 p 3 d^{3} D^{0} - 3 d^{2}^{1} D$	2–2
6	524.88	190 519.7	$3 p 3 d^{1} P^{0} - 3 d^{2}^{1} S$	1–0
6	559.63	178 689.5	$3 p 3 d^{3} D^{0} - 3 d^{2}^{3} F$	1–2
6	560.38	178 450.3	$3 p 3 d^{3} D^{0} - 3 d^{2}^{3} F$	2–3
9	560.64	178 367.6	$3 p 3 d^{3} D^{0} - 3 d^{2}^{3} F$	3–4
3	561.36	178 138.8	$3 p 3 d^{3} D^{0} - 3 d^{2}^{3} F$	3–2
6	633.73	157 795.9	$3 p 3 d^{1} F^{0} - 3 d^{2}^{1} G$	3–4
3	639.88	156 279.3	$3 p 3 d^{1} F^{0} - 3 d^{2}^{1} D$	3–2
3	656.58	152 304.4	$3 p 3 d^{1} P^{0} - 3 d^{2}^{3} P$	1–2
6	656.77	152 260.3	$3 p 3 d^{1} P^{0} - 3 d^{2}^{3} P$	1–1
6	657.12	152 179.2	$3 p 3 d^{1} P^{0} - 3 d^{2}^{3} P$	1–0
6	669.14	149 445.6	$3 p 3 d^{1} P^{0} - 3 d^{2}^{1} D$	1–2

Configuration	Level	Energy Level (cm^-1)	Percentage Composition of $LS$ Couplinga
$2 p^{6} 3 d^{2}$	$^{3} F_{2}$	653 903.9	99
$2 p^{6} 3 d^{2}$	$^{3} F_{3}$	654 037.8	99
$2 p^{6} 3 d^{2}$	$^{3} F_{4}$	654 123.9	99
$2 p^{6} 3 d^{2}$	$^{1} D_{2}$	666 547.4	96
$2 p^{6} 3 d^{2}$	$^{1} G_{4}$	668 055.2	$95 + 5 (2 p^{6} 3 p 4 f^{1} G)$
$2 p^{6} 3 d^{2}$	$^{3} P_{0}$	669 287.3	99
$2 p^{6} 3 d^{2}$	$^{3} P_{1}$	669 366.0	99
$2 p^{6} 3 d^{2}$	$^{3} P_{2}$	669 406.0	99
$2 p^{6} 3 d^{2}$	$^{1} S_{0}$	707 622.6	$96 + (2 p^{6} 3 p^{2}^{1} S)$
$2 p^{6} 3 p 3 d$	$^{1} D_{2}^{0}$	450 476.0b

Configuration	Parameter	HFR Value (cm^-1)	Fitted Value (cm^-1)	Ratio (Fitted/HFR)
	$E_{av}$	654 619	663 329	1.013
$2 p^{6} 3 d^{2}$	$F^{2} (3 d 3 d)$	78 721	68 345	0.868
	$F^{4} (3 d 3 d)$	50 617	37 592	0.743
	$ζ_{3 d}$	78a
Configuration-Interaction Integralsb
$2 p^{6} 3 s^{2} - 2 p^{6} 3 d^{2}$	$R^{2} (3 s 3 s 3 d 3 d)$	76 180	68 952	0.905
$2 p^{6} 3 p^{2} - 2 p^{6} 3 d^{2}$	$R^{1} (3 p 3 p 3 d 3 d)$	96 267	87 134	0.905
	$R^{3} (3 p 3 p 3 d 3 d)$	60 781	55 015	0.905
$2 p^{6} 3 s 3 d - 2 p^{6} 3 d^{2}$	$R^{2} (3 s 3 d 3 d 3 d)$	76 082	68 864	0.905
$2 p^{6} 3 p 4 f - 2 p^{6} 3 d^{2}$	$R^{1} (3 p 4 f 3 d 3 d)$	-53 706	-48 041	0.905
	$R^{3} (3 p 4 f 3 d 3 d)$	-30 804	-27 882	0.905

Intensitya	Wavelength (Å)	Wave Number (cm^-1)	Transition	$J - J$
3	425.99	234 747.3	$3 p 3 d^{3} P^{0} - 3 d^{2}^{1} S$	1–0
3	450.37	222 039.7	$3 p 3 d^{3} F^{0} - 3 d^{2}^{1} G$	4–4
3	450.93	221 763.9	$3 p 3 d^{3} F^{0} - 3 d^{2}^{1} D$	3–2
6	462.81	216 071.4	$3 p 3 d^{3} D^{0} - 3 d^{2}^{1} D$	2–2
3	474.65	210 681.6	$3 p 3 d^{3} F^{0} - 3 d^{2}^{3} F$	2–3
6	474.96	210 544.0	$3 p 3 d^{3} F^{0} - 3 d^{2}^{3} F$	2–2
6	477.70	209 336.4	$3 p 3 d^{3} F^{0} - 3 d^{2}^{3} F$	3–4
6	477.88	209 257.6	$3 p 3 d^{3} F^{0} - 3 d^{2}^{3} F$	3–3
3	480.49	208 120.9	$3 p 3 d^{3} F^{0} - 3 d^{2}^{3} F$	4–4
12 u	508.83	196 529.3	$3 p 3 d^{3} P^{0} - 3 d^{2}^{3} P$	1–2
12 bl	508.90	196 502.3	$3 p 3 d^{3} P^{0} - 3 d^{2}^{3} P$	1–1
9 bl	509.12	196 417.3	$3 p 3 d^{3} P^{0} - 3 d^{2}^{3} P$	1–0
3	511.37	195 553.1	$3 p 3 d^{3} P^{0} - 3 d^{2}^{3} P$	0–1
3	523.64	190 970.9	$3 p 3 d^{3} D^{0} - 3 d^{2}^{1} D$	2–2
6	524.88	190 519.7	$3 p 3 d^{1} P^{0} - 3 d^{2}^{1} S$	1–0
6	559.63	178 689.5	$3 p 3 d^{3} D^{0} - 3 d^{2}^{3} F$	1–2
6	560.38	178 450.3	$3 p 3 d^{3} D^{0} - 3 d^{2}^{3} F$	2–3
9	560.64	178 367.6	$3 p 3 d^{3} D^{0} - 3 d^{2}^{3} F$	3–4
3	561.36	178 138.8	$3 p 3 d^{3} D^{0} - 3 d^{2}^{3} F$	3–2
6	633.73	157 795.9	$3 p 3 d^{1} F^{0} - 3 d^{2}^{1} G$	3–4
3	639.88	156 279.3	$3 p 3 d^{1} F^{0} - 3 d^{2}^{1} D$	3–2
3	656.58	152 304.4	$3 p 3 d^{1} P^{0} - 3 d^{2}^{3} P$	1–2
6	656.77	152 260.3	$3 p 3 d^{1} P^{0} - 3 d^{2}^{3} P$	1–1
6	657.12	152 179.2	$3 p 3 d^{1} P^{0} - 3 d^{2}^{3} P$	1–0
6	669.14	149 445.6	$3 p 3 d^{1} P^{0} - 3 d^{2}^{1} D$	1–2

Configuration	Level	Energy Level (cm^-1)	Percentage Composition of $LS$ Couplinga
$2 p^{6} 3 d^{2}$	$^{3} F_{2}$	653 903.9	99
$2 p^{6} 3 d^{2}$	$^{3} F_{3}$	654 037.8	99
$2 p^{6} 3 d^{2}$	$^{3} F_{4}$	654 123.9	99
$2 p^{6} 3 d^{2}$	$^{1} D_{2}$	666 547.4	96
$2 p^{6} 3 d^{2}$	$^{1} G_{4}$	668 055.2	$95 + 5 (2 p^{6} 3 p 4 f^{1} G)$
$2 p^{6} 3 d^{2}$	$^{3} P_{0}$	669 287.3	99
$2 p^{6} 3 d^{2}$	$^{3} P_{1}$	669 366.0	99
$2 p^{6} 3 d^{2}$	$^{3} P_{2}$	669 406.0	99
$2 p^{6} 3 d^{2}$	$^{1} S_{0}$	707 622.6	$96 + (2 p^{6} 3 p^{2}^{1} S)$
$2 p^{6} 3 p 3 d$	$^{1} D_{2}^{0}$	450 476.0b

Abstract

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Tables (3)

Journal of the Optical Society of America B