Infrared absorption of Pr3+ in LaCl3 and LaBr3 at 4–5 μm

Jay S. Chivian; N. J. Krasutsky; W. E. Case

doi:10.1364/JOSA.69.001622

Journal of the Optical Society of America
Vol. 69,
Issue 11,
pp. 1622-1623
(1979)
•https://doi.org/10.1364/JOSA.69.001622

Infrared absorption of Pr³⁺ in LaCl₃ and LaBr₃ at 4–5 μm

Jay S. Chivian, N. J. Krasutsky, and W. E. Case

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Jay S. Chivian, N. J. Krasutsky, and W. E. Case, "Infrared absorption of Pr³⁺ in LaCl₃ and LaBr₃ at 4–5 μm," J. Opt. Soc. Am. 69, 1622-1623 (1979)

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Abstract

Energy values are derived for several levels of the ³H₄ and ³H₅ Stark manifolds of the Pr³⁺ ion in LaCl₃ and LaBr₃ not previously assigned.

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Line No.	Wave number (cm⁻¹)	Level assignment
Line No.	Wave number (cm⁻¹)	³H₄	³H₅
	LaCl₃:Pr (3.05%)
1	2170	(2)	(2)
2	2235	2	(1^′)
3	2138	(2^′)	1^′
4	2105	(1)	1^′
5	2059	1	(1)
6	2007	1	(3⁻)
7	2303	2	(0)
8	2275	(3⁻)	0
	LaBr₃:Pr (3.95%)
1	2160	(2)	(2)
2	2244	2	(1^′)
3	2114	(1)	1^′
4	2019	1	(3⁻)
5	1979	(0)	3⁻
6	2040	1	(1)
7	2080	(2^′)	1
8	2277	2	(0)
9	2195	2^′	0 check Δν = 2187
10	1987	0	2 check Δν = 1990

Level	LaCl₃ host				Level	LaBr₃ host
Level	μ	Dieke (cm⁻¹)	3.05% Pr (cm⁻¹)	7.38% Pr (cm⁻¹)	Level	μ	Dieke (cm⁻¹)	3.95% Pr (cm⁻¹)
³H₄	2	0.0	0	0	³H₄	2	0.02	0
	3⁻	33.1	28	38		3⁻	15.76
	2^′	96.4	97	93		2^′	86.0	90
	1	130.2	130	130		1		130
	3⁺	137.0				3⁺	156.5
	0	199.1				0		170
³H₅	3⁻	2137.2	2137	2138	³H₅	3⁻		2149
	2	2169.8	2170	2170		2	2159.99	2160
	1	2188.5	2189	2192		1		2170
	3⁺	2202.2				3⁺	2182.95
	2^′	2222.6				2^′	2185.7
	1^′		2235	2238		1^′		2244
	0		2303	2308		0		2277

Line No.	Wave number (cm⁻¹)	Level assignment
Line No.	Wave number (cm⁻¹)	³H₄	³H₅
	LaCl₃:Pr (3.05%)
1	2170	(2)	(2)
2	2235	2	(1^′)
3	2138	(2^′)	1^′
4	2105	(1)	1^′
5	2059	1	(1)
6	2007	1	(3⁻)
7	2303	2	(0)
8	2275	(3⁻)	0
	LaBr₃:Pr (3.95%)
1	2160	(2)	(2)
2	2244	2	(1^′)
3	2114	(1)	1^′
4	2019	1	(3⁻)
5	1979	(0)	3⁻
6	2040	1	(1)
7	2080	(2^′)	1
8	2277	2	(0)
9	2195	2^′	0 check Δν = 2187
10	1987	0	2 check Δν = 1990

Level	LaCl₃ host				Level	LaBr₃ host
Level	μ	Dieke (cm⁻¹)	3.05% Pr (cm⁻¹)	7.38% Pr (cm⁻¹)	Level	μ	Dieke (cm⁻¹)	3.95% Pr (cm⁻¹)
³H₄	2	0.0	0	0	³H₄	2	0.02	0
	3⁻	33.1	28	38		3⁻	15.76
	2^′	96.4	97	93		2^′	86.0	90
	1	130.2	130	130		1		130
	3⁺	137.0				3⁺	156.5
	0	199.1				0		170
³H₅	3⁻	2137.2	2137	2138	³H₅	3⁻		2149
	2	2169.8	2170	2170		2	2159.99	2160
	1	2188.5	2189	2192		1		2170
	3⁺	2202.2				3⁺	2182.95
	2^′	2222.6				2^′	2185.7
	1^′		2235	2238		1^′		2244
	0		2303	2308		0		2277

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