The 6sς, 6dς, and 7dς Rydberg 1Σ+g States and Two Doubly Excited 1Σ+g States of Na2

Dai, Xingcan; Chen, H.; Liu, Y.; Li, J.; Xiang, Jia; Chen, D.; Li, Li; Jeung, Gwang‐Hi

doi:10.1006/jmsp.1999.7968

Cited by 5 publications

(1 citation statement)

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“…For instance, doubly excited states of molecules H 2 , N 2 and CO show up as resonances in their photoionization spectra [4,5,6]. In the context of ultracold collisions, doubly excited states of the Na 2 molecule link the association reaction between two Na(3p 2 P) atoms to the associative ionization forming Na + 2 [7,8].…”

Section: Introductionmentioning

confidence: 99%

Evidence for a non-Rydberg molecular doubly excited state of Ca2

Gaveau

Mestdagh

Bouissou

et al. 2009

Chemical Physics Letters

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We report experimental and theoretical evidence of a non-Rydberg molecular doubly excited state of Ca 2 involving excited molecular orbitals mixing 4p and 3d characters. The excitation spectrum of Ca 2 , carried by helium or argon clusters, is recorded experimentally in the range 25600-27800 cm −1 , displaying a bimodal structure. The latter is interpreted from ab initio calculation and analysis of the adiabatic states of Ca 2 up to doubly excited asymptotes Ca(4p3d 1 D)+Ca(4s 2 1 S) and Ca(4s3d 3 D)+Ca(4s4p 3 P), and the relevant dipole transition moments. The bimodal structure is assigned as resulting from the avoided crossing between adiabatic states 3 1 Π u and 4 1 Π u , reflecting the mixing of doubly excited configurations and absorbing singly excited configurations.2

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Section: Introductionmentioning

confidence: 99%

Evidence for a non-Rydberg molecular doubly excited state of Ca2

Gaveau

Mestdagh

Bouissou

et al. 2009

Chemical Physics Letters

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Rydberg and Doubly Excited States of Na₂ and Li₂

Liu

Lyyra

2001

J Chinese Chemical Soc

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Rydberg and doubly excited states of Na2 and Li2 have been studied by optical‐optical double resonance (OODR) excitation spectroscopy. In this short review article we summarize the Rydberg states and doubly excited valence states of Li2 and Na2 that have been observed experimentally. We also give experimental evidence for the electronic characteristic differences between these two types of electronic states observed in our experiments.

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Experimental studies of the NaK 1 3Δ state

Huennekens

Prodan

Marks

et al. 2000

The Journal of Chemical Physics

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The NaK 1 3 ⌬ state has been studied by the perturbation-facilitated optical-optical double resonance technique. Mixed singlet-triplet levels, A(2) 1 ⌺ ϩ (v A ,J)ϳb(1) 3 ⌸(v b ,J), were pumped from thermally populated rovibrational levels of the ground state, X(1) 1 ⌺ ϩ (v X ,JϮ1), using a single-mode cw dye laser. A single-mode cw Ti:Sapphire laser was then used to further excite the NaK molecules to various 1 3 ⌬(v ⌬ ,N ⌬ ,J ⌬ ) rovibrational levels which were detected by observing collision-induced 3 ⌳→a(1) 3 ⌺ ϩ fluorescence in the green part of the spectrum. The measured energies of the 1 3 ⌬(v ⌬ ,N ⌬ ) levels were fit to a Dunham expansion, and the Dunham coefficients were used to construct the RKR potential curve. Absolute numbering of the 1 3 ⌬ state vibrational levels was established by a comparison of experimental and calculated 1 3 ⌬(v ⌬ ,N ⌬ ,J ⌬ ) ←b(1) 3 ⌸(v b ,J b ) absorption line strengths. A deperturbation program was used to determine the vibration-dependent 1 3 ⌬ state spin-orbit interaction parameter. Hyperfine structure of the 1 3 ⌬ state was studied, and the Fermi-contact interaction term for this state was determined to be ϳ0.0111 cm Ϫ1 .

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The 6sς, 6dς, and 7dς Rydberg 1Σ+g States and Two Doubly Excited 1Σ+g States of Na2

Cited by 5 publications

References 20 publications

Evidence for a non-Rydberg molecular doubly excited state of Ca2

Evidence for a non-Rydberg molecular doubly excited state of Ca2

Rydberg and Doubly Excited States of Na₂ and Li₂

Experimental studies of the NaK 1 3Δ state

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The 6sς, 6dς, and 7dς Rydberg 1Σ+g States and Two Doubly Excited 1Σ+g States of Na2

Cited by 5 publications

References 20 publications

Evidence for a non-Rydberg molecular doubly excited state of Ca2

Evidence for a non-Rydberg molecular doubly excited state of Ca2

Rydberg and Doubly Excited States of Na2 and Li2

Experimental studies of the NaK 1 3Δ state

Contact Info

Product

Resources

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Rydberg and Doubly Excited States of Na₂ and Li₂