Energy Levels of Neutral Erbium ( Er I )
Configuration Term J Level(cm-1) Ref.
4f126s2 3H 6 0.000 MZH78
4f126s2 3H 5 6958.329 MZH78
4f126s2 3H 4 10750.982 MZH78
4f126s2 3F 4 5035.193 MZH78
4f126s2 3F 3 12377.534 MZH78
4f126s2 3F 2 13097.906 MZH78
4f11(4I°15/2)5d3/26s2 (15/2,3/2)° 6 7176.503 MZH78
4f11(4I°15/2)5d3/26s2 (15/2,3/2)° 7 7696.956 MZH78
4f11(4I°15/2)5d3/26s2 (15/2,3/2)° 9 8620.565 MZH78
4f11(4I°15/2)5d3/26s2 (15/2,3/2)° 8 9350.106 MZH78
4f11(4I°15/2)5d5/26s2 (15/2,5/2)° 10 9655.848 MZH78
4f11(4I°15/2)5d5/26s2 (15/2,5/2)° 9 10557.916 MZH78
4f11(4I°15/2)5d5/26s2 (15/2,5/2)° 5 11401.197 MZH78
4f11(4I°15/2)5d5/26s2 (15/2,5/2)° 8 11557.670 MZH78
4f11(4I°15/2)5d5/26s2 (15/2,5/2)° 6 11799.778 MZH78
4f11(4I°15/2)5d5/26s2 (15/2,5/2)° 7 11887.503 MZH78
4f11(4I°13/2)5d3/26s2 (13/2,3/2)° 8 15083.114 MZH78
4f11(4I°13/2)5d3/26s2 (13/2,3/2)° 5 15185.352 MZH78
4f11(4I°13/2)5d3/26s2 (13/2,3/2)° 7 15846.549 MZH78
4f11(4I°13/2)5d3/26s2 (13/2,3/2)° 6 16070.095 MZH78
4f12(3H6)6s6p(3P°0) (6,0)° 6 16321.110 MZH78
4f11(4I°15/2)6s26p1/2 (15/2,1/2) 7 16464.934 MZH78
4f11(4I°15/2)6s26p1/2 (15/2,1/2) 8 16727.479 MZH78
4f12(3H6)6s6p(3P°1) (6,1)° 6 17073.800 MZH78
4f12(3H6)6s6p(3P°1) (6,1)° 7 17157.307 MZH78
4f12(3H6)6s6p(3P°1) (6,1)° 5 17347.860 MZH78
4f11(4I°11/2)5d5/26s2 (11/2,5/2)° 3 19269.640 MZH78
4f11(4I°11/2)5d5/26s2 (11/2,5/2)° 8 20566.805 MZH78
4f11(4I°11/2)5d5/26s2 (11/2,5/2)° 4 20619.731 MZH78
4f11(4I°11/2)5d5/26s2 (11/2,5/2)° 7 21168.430 MZH78
4f11(4I°11/2)5d5/26s2 (11/2,5/2)° 5 21392.817 MZH78
4f11(4I°11/2)5d5/26s2 (11/2,5/2)° 6 21701.885 MZH78
4f12(3H)6s6p ° 5 24083.166 MZH78
4f11(4I°)5d 6s2 ° 6 24457.139 MZH78
4f12(3H)6s6p ° 7 24943.272 MZH78
° 7 25159.143 MZH78
4f11(4I°)5d 6s2 ° 5 25162.553 MZH78
4f11(4F°)5d 6s2 ° 6 25392.779 MZH78
4f11(4F°)5d 6s2 ° 5 25681.933 MZH78
4f12(3H)6s6p ° 6 25880.274 MZH78
4f11(4I°)5d2(3F) (4F°)6s ° 5 30380.282 MZH78
4f12(3H)6s6p ° 6 31823.748 MZH78
Er II (3H6)6s1/2 (6,1/2)13/2 Limit 49262 WSPC78