標題: Structure and predissociation of the 3p sigma(u)D (3)Sigma(+)(u) Rydberg state of N(2): First extreme-ultraviolet and new near-infrared observations, with coupled-channels analysis
作者: Wang, Qiaoqiao
Wu, Di
Jin, Mingxing
Liu, Fuchun
Hu, Feifei
Cheng, Xihui
Liu, Hang
Hu, Zhan
Ding, Dajun
Mineo, H.
Dyakov, Y. A.
Mebel, A. M.
Chao, S. D.
Lin, S. H.
應用化學系
Department of Applied Chemistry
公開日期: 28-十一月-2008
摘要: The 3p sigma(u)D (3)Sigma(+)(u) Rydberg state of N(2) is studied experimentally using two high-resolution spectroscopic techniques. First, the forbidden D (3)Sigma(+)(u)-X (1)Sigma(+)(g) transition is observed for the first time via the (0,0) band of (14)N(2) and the (1,0) band of (15)N(2), using 1 extreme-ultraviolet +1 ultraviolet two-photon-ionization laser spectroscopy. Second, the Rydberg-Rydberg transition D (3)Sigma(+)(u)-E (3)Sigma(+)(g) is studied using near-infrared diode-laser photoabsorption spectroscopy, thus extending the previous measurements of Kanamori [J. Chem. Phys. 95, 80 (1991)], to higher transition energies, and thereby revealing the (2,2) and (3,3) bands. The combined results show that the D(v=0-3) levels exhibit rapidly increasing rotational predissociation as v increases, spanning nearly four orders of magnitude. The D-state level structure and rotational predissociation signature are explained by means of a coupled-channels model which considers the electrostatically coupled (3)Pi(u) Rydberg-valence manifold, together with a pure-precession L-uncoupling rotational interaction between the 3p sigma(u)D (3)Sigma(+)(u) and 3p pi(u)G (3)Pi(u) Rydberg p-complex components.
URI: http://dx.doi.org/10.1063/1.3023034
http://hdl.handle.net/11536/22465
ISSN: 0021-9606
DOI: 10.1063/1.3023034
期刊: JOURNAL OF CHEMICAL PHYSICS
Volume: 129
Issue: 20
起始頁: 1
結束頁: 15
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