Emission of plasma from a graphite lead placed in a microwave oven

Open Access

Table A.3

Characteristics of the different atomic optical transitions for other possible elements at λ = 670 ± 1 nm. The mention I refers to the atom and II/III/IV correspond respectively to the element double/triple/quadruple ionised.

Element	λ [nm]	Initial conf.	^2S+1L_J	Final conf.	^{2s + 1}L_j
Ar II	669.571	3s²3p⁴(³P)5p	$4 D_{5 / 2}^{o}$	3s²3p⁴(³P)5d	²D_5/2
Ar II	669.6296	3s²3p⁴(¹S)3d	²D	3s²3p⁴(³P2)4f	²[3]^o
Ar I	669.8471	$3 s^{2} 3 p^{5} (^{2} P_{3 / 2}^{o}) 4 p$	²[3/2]₁	$3 s^{2} 3 p^{5} (^{2} P_{1 / 2}^{o}) 4 d$	$^{2} {[3 / 2]}_{1}^{o}$
Ar I	669.8874	$3 s^{2} 3 p^{5} (^{2} P_{3 / 2}^{o}) 4 p$	²[3/2]₂	$3 s^{2} 3 p^{5} (^{2} P_{1 / 2}^{o}) 6 s$	$^{2} {[1 / 2]}_{1}^{o}$
N I	670.0494	2s²2p²(³P)3p	$^{4} P_{1 / 2}^{o}$	2s²2p²(³P)4d	⁴d_3/2
N I	670.4839	2s²2p²(³P)3p	$^{4} P_{1 / 2}^{o}$	2s²2p²(³P)4d	⁴d_1/2
N I	670.6107	2s²2p²(³P)3p	$^{4} P_{3 / 2}^{o}$	2s²2p²(³P)4d	⁴d_5/2
N I	670.8759	2s²2p²(³P)3p	$4 P_{3 / 2}^{o}$	2s²2p²(³P)4d	⁴d_3/2
O III	670.736	2s²2p(2P^o)4d	$^{3} D_{2}^{o}$	2s2p²(²D)3s	³D₃
O IV	670.866	2p²(³P)3s	⁴P_3/2	2s2p(³P^o)4d	$^{4} D_{3 / 2}^{o}$
O IV	670.866	2p²(³P)3s	⁴p_3/2	2s2p(³P^o)4d	$^{4} D_{1 / 2}^{o}$
O III	670.949	2s²2p(²P^o)4d	$^{3} D_{1}^{o}$	2s2p²(²D)3s	³D₂

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