Absorption, Fluorescence, and Energy Levels of the Dysprosium Ion*

G. H. Dieke; Shobha Singh

doi:10.1364/JOSA.46.000495

Absorption, Fluorescence, and Energy Levels of the Dysprosium Ion

G. H. Dieke and Shobha Singh

Journal of the Optical Society of America
Vol. 46,
Issue 7,
pp. 495-499
(1956)
•https://doi.org/10.1364/JOSA.46.000495

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G. H. Dieke and Shobha Singh, "Absorption, Fluorescence, and Energy Levels of the Dysprosium Ion*," J. Opt. Soc. Am. 46, 495-499 (1956)

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History
- Original Manuscript: February 16, 1956
- Published: July 1, 1956

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Abstract

The absorption and fluorescence spectra of DyCl₃·6H₂O have been observed at 4.2°K and 77°K. This makes an analysis of the low-lying levels possible including their Stark splitting. The strong lines have been interpreted as transitions between the ⁶H, ⁶P, and ⁶F multiplets. The Zeeman effect gives a splitting of s₁=6.73 if the acute bisectrix is parallel to the field.

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	λ	I	ν	Upper level
A₁	11 159.54	6b	8 958.51	⁶H_7/2
A₂	117.57	5	992.49
A₃	10 983.83	7d	9 101.80
A₄	964.86	10d	117.65
B₁	9 867.12	3b	10 131.89	⁶H_5/2
B₂	817.97	3b	182.62
C₁	9 112.92	4b	970.41	⁶P_7/2
C₂	098.48	2b	987.83
C₃	051.16	3b	11 045.27
C₄	032.79	8b	067.74
D₁	8 080.503	10bb	12 372.07	⁶P_5/2
D₂	064.666	9b	396.36
D₃	028.315	10bb	452.49
D₄	015.12	2b	472.99
D₅	7 973.281	0b	538.44
E₁	7 573.708	10db	13 199.94	⁶P_3/2
E₂	569.573	10db	207.10
	5 828.725^a	2b	17 151.67
	5 414.811^a	2	18 462.74
	407.804^a	3	486.67
F₁	4 769.933	9	20 958.80	⁶F_11/2
F₂	752.125	4b	037.35
	739.914	1bd	091.55
F₃	738.486	5db	097.89
F₄	719.955	3db	180.73
	719.249	1bd	183.90
F₅	4 697.166	2bd	283.49
F₆	694.720	4bd	294.58

	77°K			4.2°K		Lower state
	λ	I	ν	I	ν	Lower state
Z₁	4770.26	5	20 957.52			⁶H_15/2
Z₂	77.68	7	925.01	4s	20 924.73
Z₄	87.96	10d	880.11	6	881.32
Z₅	91.03	8s	866.79	5s	865.48
Z₆	95.81	10d	846.01	7	845.51
Z₇	4805.24	10d	805.13	4d	803.64
Z₈	85.32	30dd	464.48	17	463.24
Y₁′	5698.56	15d	17 543.83		⋯	⁶H_13/2
Y₂′	5702.01	15d	533.22		⋯
Y₃′	15.98	15d	490.28		⋯
Y₄′	21.44	17dd	473.61		⋯
Y₁	24.04	40dd	465.64	30	467.09
Y₂	27.70	40dd	454.49	30	455.47
Y₃	41.42	35d	412.73	25	412.83
Y₄	46.59	34d	397.05	10s	396.71
Y₅	55.89	22d	368.88	7	368.83
Y₆	75.82	35dd	308.89	15b	307.75
Y₇′	91.60	17dd	261.69		⋯
Y₇	5817.94	35dd	183.46	25	182.60
X₁′	6566.74	10	15 254.05			⁶H_11/2
X₂′	79.60	10	194.29
X₃′	87.24	10d	176.68
X₁	6600.34	30	146.55
X₂	13.37	27s	116.72
X₃	20.96	25	099.37
X₄	47.39	14d	039.35
W₁	7488.36	7	13 350.49			⁶H_9/2
W₂	7507.33	5	316.77
W₃	17.10	12	299.46
W₄	26.96	4	282.03
W₅	67.55	0	210.62
V₁	8330.70	4	12 000.36			⁶H_7/2
V₂	52.62	0	11 968.86

Absorption at 77°K	Fluorescence
Absorption at 77°K	4°K	77°K
0	0	0
32.54	34.06	32.51
62.24
76.4	77.47	77.41
90.5	93.31	90.73
103	115.28	111.51
	155.15	152.39
	495.55	493.04

	λ	I	ν	Upper level
A₁	11 159.54	6b	8 958.51	⁶H_7/2
A₂	117.57	5	992.49
A₃	10 983.83	7d	9 101.80
A₄	964.86	10d	117.65
B₁	9 867.12	3b	10 131.89	⁶H_5/2
B₂	817.97	3b	182.62
C₁	9 112.92	4b	970.41	⁶P_7/2
C₂	098.48	2b	987.83
C₃	051.16	3b	11 045.27
C₄	032.79	8b	067.74
D₁	8 080.503	10bb	12 372.07	⁶P_5/2
D₂	064.666	9b	396.36
D₃	028.315	10bb	452.49
D₄	015.12	2b	472.99
D₅	7 973.281	0b	538.44
E₁	7 573.708	10db	13 199.94	⁶P_3/2
E₂	569.573	10db	207.10
	5 828.725^a	2b	17 151.67
	5 414.811^a	2	18 462.74
	407.804^a	3	486.67
F₁	4 769.933	9	20 958.80	⁶F_11/2
F₂	752.125	4b	037.35
	739.914	1bd	091.55
F₃	738.486	5db	097.89
F₄	719.955	3db	180.73
	719.249	1bd	183.90
F₅	4 697.166	2bd	283.49
F₆	694.720	4bd	294.58

	77°K			4.2°K		Lower state
	λ	I	ν	I	ν	Lower state
Z₁	4770.26	5	20 957.52			⁶H_15/2
Z₂	77.68	7	925.01	4s	20 924.73
Z₄	87.96	10d	880.11	6	881.32
Z₅	91.03	8s	866.79	5s	865.48
Z₆	95.81	10d	846.01	7	845.51
Z₇	4805.24	10d	805.13	4d	803.64
Z₈	85.32	30dd	464.48	17	463.24
Y₁′	5698.56	15d	17 543.83		⋯	⁶H_13/2
Y₂′	5702.01	15d	533.22		⋯
Y₃′	15.98	15d	490.28		⋯
Y₄′	21.44	17dd	473.61		⋯
Y₁	24.04	40dd	465.64	30	467.09
Y₂	27.70	40dd	454.49	30	455.47
Y₃	41.42	35d	412.73	25	412.83
Y₄	46.59	34d	397.05	10s	396.71
Y₅	55.89	22d	368.88	7	368.83
Y₆	75.82	35dd	308.89	15b	307.75
Y₇′	91.60	17dd	261.69		⋯
Y₇	5817.94	35dd	183.46	25	182.60
X₁′	6566.74	10	15 254.05			⁶H_11/2
X₂′	79.60	10	194.29
X₃′	87.24	10d	176.68
X₁	6600.34	30	146.55
X₂	13.37	27s	116.72
X₃	20.96	25	099.37
X₄	47.39	14d	039.35
W₁	7488.36	7	13 350.49			⁶H_9/2
W₂	7507.33	5	316.77
W₃	17.10	12	299.46
W₄	26.96	4	282.03
W₅	67.55	0	210.62
V₁	8330.70	4	12 000.36			⁶H_7/2
V₂	52.62	0	11 968.86

Abstract

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