<trans-title xml:lang="en">Luminescence Property and Judd-Ofelt Analysis of 0.6%Pr, <i>x</i>%La:CaF<sub>2</sub> Crystals </trans-title>

Xinyu QIAN; Wudi WANG; Qingsong SONG; Yongjun DONG; Yanyan XUE; Chenbo ZHANG; Qingguo WANG; Xiaodong XU; Huili TANG; Guixin CAO; Jun XU

doi:10.15541/jim20220504

Journal of Inorganic Materials, Volume. 38, Issue 3, 357(2023)

Luminescence Property and Judd-Ofelt Analysis of 0.6%Pr, x%La:CaF₂ Crystals

Xinyu QIAN^1,2, Wudi WANG², Qingsong SONG², Yongjun DONG⁴, Yanyan XUE², Chenbo ZHANG², Qingguo WANG², Xiaodong XU³, Huili TANG², Guixin CAO¹, and Jun XU^2、*

Author Affiliations

¹1. Materials Genome Institute, Shanghai University, Shanghai 200444, China

²2. Key Laboratory of Advanced Micro- Structured Materials of Ministry of Education, School of Physics Science and Engineering, Institute for Advanced Study, Tongji University, Shanghai 200092, China

³3. Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China

⁴4. Nanjing Metalaser Photonics Company Ltd., Nanjing 210038, China

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Figures & Tables(11)

1. As-grown 0.6%Pr, x%La:CaF₂ (x=3, 10, 18) single crystals

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2. XRD patterns of Pr,La:CaF₂ crystals and standard pattern of CaF₂ crystal

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3. Absorption spectra of Pr,La:CaF₂ crystals at room temperature Colorful figure is available on website

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4. Fluorescent spectra of Pr,La:CaF₂ crystals at room temperatureColorful figure is available on website

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5. Fluorescence decay lifetime of ³P₀ energy of 0.6%Pr, x%La:CaF₂ crystals at room temperature(a) x=0; (b) x=3; (c) x=10; (d) x=18; Colorful figure is available on website

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Table 1.
Actual concentration of Pr³⁺ and La³⁺ ions in CaF₂ crystals

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Table 1.
Actual concentration of Pr³⁺ and La³⁺ ions in CaF₂ crystals

Crystal	Initial concentration/%(in atomic)		Actual concentration/%(in atomic)		Segregation coefficient
Crystal	Pr³⁺	La³⁺	Pr³⁺	La³⁺	Pr³⁺	La³⁺
Pr,La:CaF₂	0.60	0.00	0.53	0.00	0.88	-
	0.60	3.00	0.52	3.06	0.86	1.02
	0.60	10.00	0.53	8.59	0.89	0.86
	0.60	18.00	0.47	15.49	0.79	0.86

Table 2.
Average wavelength λ, absorption line strength S_exp(J, Jʹ) and calculated line strength S_cal(J, Jʹ)

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Table 2.
Average wavelength λ, absorption line strength S_exp(J, Jʹ) and calculated line strength S_cal(J, Jʹ)

	0.6%Pr,3%La:CaF₂			0.6%Pr,10%La:CaF₂			0.6%Pr,18%La:CaF₂
	λ/nm	S_exp/(×10^-20, cm²)	S_cal/(×10^-20, cm²)	λ/nm	S_exp/(×10^-20, cm²)	S_cal/(×10^-20, cm²)	λ/nm	S_exp/(×10^-20, cm²)	S_cal/(×10^-20, cm²)
³P₂	443	1.848	0.267	443	1.617	0.209	443	2.024	0.269
³P₁+¹I₆	468	0.367	0.214	468	0.376	0.238	468	0.451	0.240
³P₀	483	0.145	0.130	483	0.119	0.150	482	0.240	0.150
¹D₂	591	0.526	0.136	590	0.580	0.111	590	0.461	0.138
¹G₄	1011	0.194	0.027	997	0.205	0.024	991	0.140	0.028
³F₄	1443	0.699	1.011	1442	0.714	0.788	1437	0.820	1.016
³F₃	1550	2.291	1.657	1554	1.727	1.420	1551	2.300	1.706
³F₂	1945	1.161	0.834	1920	1.528	1.377	1936	1.380	1.021
³H₆	2250	0.406	0.296	2252	0.391	0.230	2257	0.334	0.298
RMS ΔS/(×10^-20, cm²)	0.744			0.290			0.793

Table 3.
J-O intensity parameters of Pr,La:CaF₂ crystals and other crystals

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Table 3.
J-O intensity parameters of Pr,La:CaF₂ crystals and other crystals

Crystal	Ω₂/(×10^-20, cm²)	Ω₄/(×10^-20, cm²)	Ω₆/(×10^-20, cm²)	Ω₄/Ω₆	Ref.
0.6%Pr,3%La:CaF₂	0.59	0.76	1.94	0.39	This work
0.6%Pr,10%La:CaF₂	1.68	0.88	1.44	0.61
0.6%Pr,18%La:CaF₂	0.87	0.87	1.93	0.45
LaF₃	0.72	0.39	4.79	0.08	[22]
CaF₂	1.15	3.60	10.00	0.36	[23]
LYF₄	3.45	3.94	6.13	0.64	[22]
BaY₂F₈	1.09	3.49	2.22	1.57	[23]
KYF₄	3.92	1.78	7.94	0.22	[23]
CaYAlO₄	5.67	8.09	14.90	0.54	[26]
YAlO₃	2.28	3.88	5.15	0.75	[30]
Y₃Al₅O₁₂	0.00	12.20	8.17	1.49	[24]
SrAl₁₁O₁₉	0.84	2.19	6.86	0.32	[30]

Table 4.
Radiative transition rates A, fluorescence branching ratio β and radiation lifetime τ

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Table 4.
Radiative transition rates A, fluorescence branching ratio β and radiation lifetime τ

Crystal	Transitions from ³P₀	λ/nm	A_ed/S^-1	β/%	τ/μs
0.6%Pr:CaF₂	³H₄	485	2068.02	28.39	137.3
	³H₅	532	0.00	0.00
	³H₆	607	745.80	10.24
	³F₂	645	4081.31	56.04
	³F₃+³F₄	724	387.93	5.33
0.6%Pr,3%La:CaF₂	³H₄	485	2161.59	43.48	201.1
	³H₅	532	0.00	0.00
	³H₆	608	1186.02	23.85
	³F₂	644	1220.94	24.56
	³F₃+³F₄	725	403.47	8.11
0.6%Pr,10%La:CaF₂	³H₄	485	8357.08	34.01	136.3
	³H₅	532	0.00	0.00
	³H₆	608	3557.05	11.95
	³F₂	644	4803.69	47.68
	³F₃+³F₄	725	1562.94	6.36
0.6%Pr,18%La:CaF₂	³H₄	485	559.00	41.82	168.9
	³H₅	532	0.00	0.00
	³H₆	608	3642.46	19.80
	³F₂	644	769.30	30.55
	³F₃+³F₄	725	104.56	7.82

Table 5.
Peak wavelength λ, FWHM and stimulated emission cross section σ_em

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Table 5.
Peak wavelength λ, FWHM and stimulated emission cross section σ_em

Concentration of La³⁺ ion	Transition	λ_em/nm	FWHM/nm	σ_em/(×10^-20, cm²)
0.6%Pr:CaF₂	³P₀→³H₄	482	5.20	0.77
	³P₀→³H₅	535	26.68	0.00
	³P₀→³H₆	605	15.84	1.14
	³P₀→³F₂	640	5.13	0.96
	³P₀→³F₃+³F₄	723	4.51	0.59
0.6%Pr,3%La:CaF₂	³P₀→³H₄	484	6.76	1.96
	³P₀→³H₅	537	27.45	0.00
	³P₀→³H₆	599	15.30	1.35
	³P₀→³F₂	640	3.12	1.51
	³P₀→³F₃+³F₄	723	5.21	2.48
0.6%Pr,10%La:CaF₂	³P₀→³H₄	484	8.36	2.52
	³P₀→³H₅	535	26.76	0.00
	³P₀→³H₆	599	16.98	1.36
	³P₀→³F₂	640	3.80	3.18
	³P₀→³F₃+³F₄	723	5.49	3.03
0.6%Pr,18%La:CaF₂	³P₀→³H₄	482	9.57	1.22
	³P₀→³H₅	537	26.25	0.00
	³P₀→³H₆	606	18.53	1.24
	³P₀→³F₂	640	3.80	2.92
	³P₀→³F₃+³F₄	723	7.38	1.40

Table 6.
Wavelength λ, FWHM, stimulated emission cross section σ_em and spectral quality factor σ_em·τ_f for the transition of ³P₀→³H₆ and ³P₀→³F₂ of Pr,La:CaF₂ and other crystals

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Table 6.
Wavelength λ, FWHM, stimulated emission cross section σ_em and spectral quality factor σ_em·τ_f for the transition of ³P₀→³H₆ and ³P₀→³F₂ of Pr,La:CaF₂ and other crystals

Crystal	Transition	FWHM/nm	σ_em/(×10^-20, cm²)	τ/μs	σ_em·τ_f/(×10^-20, cm²·μs)	Ref.
0.6%Pr:CaF₂	³P₀→³H₆	15.84	1.14	45.30	51.65	This work
0.6%Pr:CaF₂	³P₀→³F₂	5.13	0.96	45.30	43.53
0.6%Pr,3%La:CaF₂	³P₀→³H₆	15.3	1.35	45.33	61.20
0.6%Pr,3%La:CaF₂	³P₀→³F₂	3.12	1.51	45.33	68.65
0.6%Pr,10%La:CaF₂	³P₀→³H₆	16.98	1.36	45.82	62.32
0.6%Pr,10%La:CaF₂	³P₀→³F₂	3.80	3.18	45.82	145.79
0.6%Pr,18%La:CaF₂	³P₀→³H₆	18.53	1.24	39.75	49.29
0.6%Pr,18%La:CaF₂	³P₀→³F₂	3.80	2.92	39.75	116.10
LaF₃	³P₀→³H₆	3	3.3	51.42	169.67	[22]
LaF₃	³P₀→³F₂	7.7	7.56	51.42	388.70	[22]
LuLiF₄	³P₀→³H₆	1.2	12	37.90	454.80	[33]
LuLiF₄	³P₀→³F₂	0.7	21	37.90	795.90	[33]
YLiF₄	³P₀→³H₆	1.4	14	35.70	499.80	[33]
YLiF₄	³P₀→³F₂	0.7	22	35.70	785.40	[33]
GdLiF₄	³P₀→³H₆	1.3	13	43.61	566.91	[33]
GdLiF₄	³P₀→³F₂	-	23	43.61	1003.00	[33]
BaY₂F₈	³P₀→³H₆	1.2	24.7	43.00	1062.10	[32]
BaY₂F₈	³P₀→³F₂	0.6	12.1	43.00	520.30	[32]

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Xinyu QIAN, Wudi WANG, Qingsong SONG, Yongjun DONG, Yanyan XUE, Chenbo ZHANG, Qingguo WANG, Xiaodong XU, Huili TANG, Guixin CAO, Jun XU. Luminescence Property and Judd-Ofelt Analysis of 0.6%Pr, x%La:CaF₂ Crystals [J]. Journal of Inorganic Materials, 2023, 38(3): 357

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Paper Information

Category:

Received: Aug. 26, 2022

Accepted: --

Published Online: Oct. 16, 2023

The Author Email: Jun XU (xujun@mail.shcnc.ac.cn)

DOI:10.15541/jim20220504

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Actual concentration of Pr3+ and La3+ ions in CaF2 crystals

Table 1. Actual concentration of Pr3+ and La3+ ions in CaF2 crystals

Table 2. Average wavelength λ, absorption line strength Sexp(J, Jʹ) and calculated line strength Scal(J, Jʹ)

Table 2. Average wavelength λ, absorption line strength Sexp(J, Jʹ) and calculated line strength Scal(J, Jʹ)

Table 3. J-O intensity parameters of Pr,La:CaF2 crystals and other crystals

Table 3. J-O intensity parameters of Pr,La:CaF2 crystals and other crystals

Table 4. Radiative transition rates A, fluorescence branching ratio β and radiation lifetime τ

Table 4. Radiative transition rates A, fluorescence branching ratio β and radiation lifetime τ

Table 5. Peak wavelength λ, FWHM and stimulated emission cross section σem

Table 5. Peak wavelength λ, FWHM and stimulated emission cross section σem

Table 6. Wavelength λ, FWHM, stimulated emission cross section σem and spectral quality factor σem·τf for the transition of 3P0→3H6 and 3P0→3F2 of Pr,La:CaF2 and other crystals

Table 6. Wavelength λ, FWHM, stimulated emission cross section σem and spectral quality factor σem·τf for the transition of 3P0→3H6 and 3P0→3F2 of Pr,La:CaF2 and other crystals

Table 1.
Actual concentration of Pr³⁺ and La³⁺ ions in CaF₂ crystals

Table 1.
Actual concentration of Pr³⁺ and La³⁺ ions in CaF₂ crystals

Table 2.
Average wavelength λ, absorption line strength S_exp(J, Jʹ) and calculated line strength S_cal(J, Jʹ)

Table 2.
Average wavelength λ, absorption line strength S_exp(J, Jʹ) and calculated line strength S_cal(J, Jʹ)

Table 3.
J-O intensity parameters of Pr,La:CaF₂ crystals and other crystals

Table 3.
J-O intensity parameters of Pr,La:CaF₂ crystals and other crystals

Table 4.
Radiative transition rates A, fluorescence branching ratio β and radiation lifetime τ

Table 4.
Radiative transition rates A, fluorescence branching ratio β and radiation lifetime τ

Table 5.
Peak wavelength λ, FWHM and stimulated emission cross section σ_em

Table 5.
Peak wavelength λ, FWHM and stimulated emission cross section σ_em

Table 6.
Wavelength λ, FWHM, stimulated emission cross section σ_em and spectral quality factor σ_em·τ_f for the transition of ³P₀→³H₆ and ³P₀→³F₂ of Pr,La:CaF₂ and other crystals

Table 6.
Wavelength λ, FWHM, stimulated emission cross section σ_em and spectral quality factor σ_em·τ_f for the transition of ³P₀→³H₆ and ³P₀→³F₂ of Pr,La:CaF₂ and other crystals