OPTICAL-OPTICAL DOUBLE-RESONANCE EXCITATION SPECTRA OF THE (6d)1$\Pi$g, (7d)1$\Pi$g HIGH-LYING RYDBERG STATES IN Na2
PAN YONG-LE (潘永乐), DING LIANG-EN (丁良恩), MA LONG-SHENG (马龙生), SUN DIAI-PING (孙殿平), WANG ZU-GENG (王祖赓)
Department of Physics, East China Normal University, Shanghai 200062, China; Joint Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Academia Sinica and East China Normal University, Shanghai 201800, China
Abstract Two 1$\Pi$g states of Na2 for v≤13 have been observed by using optical-optical double resonance (OODR) fluorescence excitation spectroscopy. The intermediate levels in B1$\Pi$u state are identified by the numerical calculations with the molec-ular constants for B1$\Pi$u←X1$\Sigma$g+ transitions and confirmed by the complemen-tary A1$\Sigma$g+←X1$\Sigma$g+ polarization spectra. Absolute vibrational numberings of the (6d)1$\Pi$g and (7d)1$\Pi$g states are determined by comparing the experimental OODR excitation intensities with the simulated Franck-Condon factors. The Dnnham coef-ficients and the Rydberg-Klein-Rees (RKR) potential energy curves of the (6d)1$\Pi$g, (7d)1$\Pi$g states are reported.
Received: 21 June 1993
Accepted manuscript online:
PACS:
33.80.Rv
(Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))
(Multiple resonances (including double and higher-order resonance processes, such as double nuclear magnetic resonance, electron double resonance, and microwave optical double resonance))
(Potential energy surfaces for excited electronic states)
Fund: Project supported by the National Natural Science Fouadation of China.
Cite this article:
PAN YONG-LE (潘永乐), DING LIANG-EN (丁良恩), MA LONG-SHENG (马龙生), SUN DIAI-PING (孙殿平), WANG ZU-GENG (王祖赓) OPTICAL-OPTICAL DOUBLE-RESONANCE EXCITATION SPECTRA OF THE (6d)1$\Pi$g, (7d)1$\Pi$g HIGH-LYING RYDBERG STATES IN Na2 1994 Acta Physica Sinica (Overseas Edition) 3 328
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