Molecular dissociative sequential excitation and ionization of strontium vapor |
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| Authors: | MA Baig M Yaseen Raheel Ali Ali Nadeem SA Bhatti |
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| Institution: | (1) Atomic and Molecular Physics Laboratory, Department of Physics, Quaid-i-Azam University, Islamabad 45320, Pakistan, PK;(2) Applied Physics Division, PINSTECH, P. O. Box Nilore, Islamabad, Pakistan, PK |
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| Abstract: | We report new measurements on laser-assisted molecular dissociative sequential excitation and ionization spectra of strontium
vapor. A single Nd:YAG pumped dye laser in conjunction with an atomic beam apparatus have been used to investigate the even
parity 5snd
3,1
D
2
Rydberg series resulting from the 5s5p
1
P
1
resonance level. The relative intensities changes among the 5snd
3
D
2
and 1
D
2
Rydberg series are attributed to the interactions with the 4d6s
1,3
D
2
perturbers, respectively. The interchannel interactions between the 5snd
1
D
2
series and the 4d6s
1
D
2
level and among the 5snd
3
D
1,2,3
series and the 4d6s
3
D
1,2,3
intruders have been separately parameterized using the two-channel quantum defect theory.
Received: 10 September 1998 / Received in final form: 16 December 1998 |
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| Keywords: | PACS 31 50 +w Excited states 32 30 Jc Visible and ultraviolet spectra 32 80 Rm Multiphoton ionization and excitation to highly excited states (e g Rydberg states) |
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