Laser Spectroscopic Investigations of Praseodymium I Transitions: New Energy Levels

Table 1

New even levels discovered as lower levels of the excited transitions.

New even lower level					Investigated/observed; spectral line	Combining odd upper level							Observed fluorescence; decay of the odd upper level	Final level of the decay
𝐽	Energy/cm^−1	A/MHz	λ/Å	C.	SNR	𝐽	Energy/cm^−1	A/MHz	B/MHz	Ref. to columns 9 and 10	λ/Å	C.	SNR	𝐽	Energy/cm^−1
3/2	12051.488	1071 (3)	4548.484	nl	4	5/2	34030.654	704 (2)	—	[19]
			4716.39	nl, f	1	3/2	33248.19	860 (8)		[13]
			4809.56	nl, e	1	1/2	32837.514	−20 (10)	—	[19]	5047.996	nl	1	3/2	13033.280
			4897.184	nl	4	5/2	32465.793	598 (2)	—	[19]
			5143.41	nl, e	1	1/2	31488.533	74 (5)	—	[19]	4577.773	nl	1	3/2	9649.970
			5181.917	nl, f	1	3/2	31343.998	1123 (3)	—	This work
			5342.725	nl	12	5/2	30763.323	981 (2)	—	This work
			5448.506	nl, f	1	1/2	30400.042	1890 (10)		[13]
			5457.12	nl, f	1	3/2	30371.081	535 (4)		[13]
			5477.134	nl, f	8	5/2	30304.145	818 (2)	—	This work
			5518.794	nl, f	14	3/2	30166.356	1106 (4)		[13]
			5616.551	nl	7	5/2	29851.062	922 (7)		[13]
			5729.86	nl, e	1	3/2	29499.100	260 (5)		[13]	4337.685	nl	3	5/2	6451.808
			5779.18	nl, e	1	3/2	29350.190	584 (4)		[13]	5090.336	cl	12	5/2	9710.600
			5781.93	nl, e	1	1/2	29341.96	915 (7)		[13]	5720.195	nl	6	1/2	11864.887
			5833.12	nl, e	1	3/2	29190.205	553 (1)	0 (10)	This work	5444.773	nl	15	5/2	10829.070
			5837.356	nl	8	3/2	29177.805	655 (3)		[19]
			6429.72	nl, e	1	1/2	27599.953	2039 (6)		[13]	5569.489	nl	16	3/2	9649.970
			7520.74	nl, e	1	5/2	25344.394	692 (2)	0 (10)	[19]	5315.176	cl	55	7/2	6535.572
			8866.58	nl, e	1	5/2	23326.729	415 (1)	30 (15)	[19]	5924.318	nl	10	5/2	6451.808
			9084.938	nl	10	3/2	23055.698	−280 (2)		This work
			9246.821	cl	13	5/2	22863.048	502 (4)		[13]
5/2	12646.996	892 (2)	4923.423	nl	3	7/2	32952.378	838 (2)	—	[19]
			5178.994	nl	5	7/2	31950.447	784 (2)	—	[19]
			5299.097	nl	8	3/2	31512.878	649 (3)	—	[19]
			5308.651	cl	11	7/2	31478.935	731 (6)		This work
			5661.86	nl, e	1	5/2	30304.145	818 (2)	—	This work	4854.534	nl	4	5/2	9710.600
			5700.74	nl, e	1	7/2	30183.720	600 (4)		This work	5042.225	nl	8	9/2	10356.737
			5949.52	e	15	7/2	29450.410	783 (6)		This work	4231.161	nl	7	9/2	5822.890
			7429.512	nl	5	5/2	26103.121	904 (3)	—	[19]
			9337.905	cl	6	7/2	23353.101	862 (3)		This work
			9586.286	cl	15	5/2	23075.703	428 (2)	—	[19]
			9812.968	cl	8	7/2	22834.799	1227 (3)	—	[19]
			9965.499	cl	18	5/2	22678.865	580 (2)		This work
11/2	12658.401	995 (5)	4941.41	nl, e	1	11/2	32889.914	694 (3)	—	[19]	3693.482	cl	12	9/2	5822.890
			5052.605	nl, f	1	11/2	32444.655	697 (2)		This work
			5266.366	nl	12	13/2	31641.543	735 (2)	—	[19]
			5288.376	nl, f	1	11/2	31562.535	665 (8)		This work
			5368.993	nl, f	17	13/2	31278.686	662.8 (40)		[10]
			5384.011	nl	9	13/2	31226.756	641.4 (20)	—	[10]
			5643.521	nl, f	1	9/2	30372.918	830 (3)		This work
			5671.81	nl, e	1	13/2	30284.567	681 (2)	—	This work	4850.767	cl	6	11/2	9675.029
			5720.274	nl, e	9	13/2	30135.234	587 (6)		This work
			5728.21	nl, e	1	11/2	30111.020	786 (2)	—	This work	4252.777	nl	6	13/2	6603.591
			5733.53	nl, e	1	11/2	30094.834	825 (2)	—	This work	5394.551	nl	1	13/2	11562.762
			5747.20	nl, e	1	11/2	30053.346	759 (2)	—	This work	5220.665	nl	14	11/2	10904.034
			5765.104	nl, e	10	13/2	29999.333	681 (1)	—	[19]	4872.926	cl	20	11/2	9483.518
			5788.33	nl, e	1	9/2	29929.748	934 (3)	—	[19]	5254.583	nl	21	11/2	10904.034
			5800.05	nl, e	1	13/2	29894.855	537 (3)	—	[19]	3994.341	nl	20	11/2	4866.515
			6315.678	nl, e	1	13/2	28487.636	672 (2)	—	This work	4967.870	cl	60	15/2	8363.901
			6389.825	cl	11	13/2	28303.954	600 (3)	—	[19]
			7446.558	nl, e	3	9/2	26083.725	929 (1)	—	[5]	4711.836		70	11/2	4866.515
			7627.381	nl	3	13/2	25765.475	582 (3)		This work
			8453.073	nl	6	9/2	24485.172	1105 (3)		This work
			8509.730	cl	7	11/2	24406.428	559 (5)	—	[5]
			8581.240	cl	10	9/2	24308.530	535 (1)	−3 (4)	[8]
			9078.497	cl	8	11/2	23670.416	535 (3)	—	[19]
			9280.772	cl	9	9/2	23430.407	561 (1)	—	[19]
7/2	13415.739	797 (2)	4542.707	nl	4	9/2	35422.868	569 (3)		[19]
			5039.718	nl	12	5/2	33252.618	684 (2)		This work
			5356.994	nl, f	6	7/2	32077.740	651 (2)		This work
			5392.35	nl, f	1	9/2	31955.363	760 (2)		This work
			5477.231	nl	9	7/2	31668.068	852 (3)	—	This work
			5544.107	nl	6	9/2	31447.902	665 (1)	—	This work
			5828.51	nl, e	1	5/2	30568.035	735 (3)		[13]	4355.961	nl	4	7/2	7617.440
			5919.58	nl, e	1	5/2	30304.145	818 (2)	—	This work	5277.699	nl	5	3/2	11361.762
			6419.42	nl, e	1	7/2	28989.170	959 (3)	—	[19]	4315.405	nl	24	9/2	5822.890
			7736.765	nl, e	1	9/2	26337.481	810 (1)	—	[19]	4873.218	cl	20	9/2	5822.890
			7821.265	nl, e	1	5/2	26197.878	1201 (3)	—	[19]	5084.456		300	7/2	6535.572
			8489.433	nl	19	5/2	25191.854	925 (4)		[13]
			9110.822	nl	12	5/2	24388.695	1116 (2)		This work
			9273.537	cl	12	9/2	24196.152	714 (4)		This work
			9504.223	cl	9	9/2	23934.491	786 (2)		This work
			9534.246	nl	10	7/2	23901.371	640 (2)		This work
			9698.774	cl	7	7/2	23723.500	815 (5)	—	This work
			9789.259	cl	9	7/2	23628.218	562 (2)		This work
			9804.987	cl	7	7/2	23611.834	270 (2)		This work

C: comment; nl: new line, not listed in commonly used wavelength tables; cl: classification of a “known” line (i.e., listed as praseodymium line but not yet classified); e: excited line; f: observed as fluorescence line.