SPECTROSCOPY AND MULTICHANNEL QUANTUM-DEFECT THEORY ANALYSIS OF THE NP RYDBERG SERIES OF H3

被引:40
作者
BORDAS, MC
LEMBO, LJ
HELM, H
机构
[1] SRI INT, DEPT MOLEC PHYS, MENLO PK, CA 94025 USA
[2] TRW DEF & SPACE SYST GRP INC, REDONDO BEACH, CA 90278 USA
来源
PHYSICAL REVIEW A | 1991年 / 44卷 / 03期
关键词
D O I
10.1103/PhysRevA.44.1817
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The lowest np Rydberg series of triatomic hydrogen has been studied using optical-optical double-resonance excitation from the metastable 2p2 A2" level. Bound states, detected by field ionization as well as autoionizing states of the p series are characterized using rotational multichannel quantum-defect theory. Deviations from the calculations appear when vibrational interactions give rise to predissociation below threshold or autoionizing interlopers above threshold. The np Rydberg manifold of H-3 provides an almost complete panorama of channel interactions in a polyatomic molecule: rotational and vibrational interactions and autoionization with rich Fano profile structure as well as predissociation.
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页码:1817 / 1827
页数:11
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