Λ-Doubling investigation of the 51Πg Rydberg state of Na2 using optical-optical double resonance spectroscopy

Chin Chun Tsai; Ray Yuan Chang; Thou Jen Whang

doi:10.1016/j.jms.2005.09.013

Λ-Doubling investigation of the 5¹Π_g Rydberg state of Na₂ using optical-optical double resonance spectroscopy

Chin Chun Tsai, Ray Yuan Chang, Thou Jen Whang

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The splitting of Λ-doubling in the 5¹Π_g Rydberg state of Na₂, which dissociates to Na(3s) + Na(4d), has been measured using the high-resolution cw optical-optical double resonance technique. The observed data are in the range of 0 ≤ v ≤ 22 and 11 ≤ J ≤ 83 with Λ-doubling revealed. A set of Dunham coefficients with Λ-doubling constants has been obtained from the experimental results. The splitting of Λ-doubling increases quadratically with the rotational quantum number J and weakly depends on the vibrational quantum number v. These splitting constants are much larger than those in the Na₂ B ¹Π_u state, which dissociates to Na(3s) + Na(3p). This indicates that the splitting of Λ-doubling in the 5¹Π _g state is affected by both the perturbations by adjacent Σ states and the L-uncoupling.

Original language	English
Pages (from-to)	264-269
Number of pages	6
Journal	Journal of molecular spectroscopy
Volume	234
Issue number	2
DOIs	https://doi.org/10.1016/j.jms.2005.09.013
Publication status	Published - 2005 Dec

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry

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title = "Λ-Doubling investigation of the 51Πg Rydberg state of Na2 using optical-optical double resonance spectroscopy",

abstract = "The splitting of Λ-doubling in the 51Πg Rydberg state of Na2, which dissociates to Na(3s) + Na(4d), has been measured using the high-resolution cw optical-optical double resonance technique. The observed data are in the range of 0 ≤ v ≤ 22 and 11 ≤ J ≤ 83 with Λ-doubling revealed. A set of Dunham coefficients with Λ-doubling constants has been obtained from the experimental results. The splitting of Λ-doubling increases quadratically with the rotational quantum number J and weakly depends on the vibrational quantum number v. These splitting constants are much larger than those in the Na2 B 1Πu state, which dissociates to Na(3s) + Na(3p). This indicates that the splitting of Λ-doubling in the 51Π g state is affected by both the perturbations by adjacent Σ states and the L-uncoupling.",

author = "Tsai, {Chin Chun} and Chang, {Ray Yuan} and Whang, {Thou Jen}",

note = "Funding Information: This work was supported by the National Science Council and the National Space Program Office, Taiwan.",

year = "2005",

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doi = "10.1016/j.jms.2005.09.013",

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journal = "Journal of Molecular Spectroscopy",

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T1 - Λ-Doubling investigation of the 51Πg Rydberg state of Na2 using optical-optical double resonance spectroscopy

AU - Tsai, Chin Chun

AU - Chang, Ray Yuan

AU - Whang, Thou Jen

N1 - Funding Information: This work was supported by the National Science Council and the National Space Program Office, Taiwan.

PY - 2005/12

Y1 - 2005/12

N2 - The splitting of Λ-doubling in the 51Πg Rydberg state of Na2, which dissociates to Na(3s) + Na(4d), has been measured using the high-resolution cw optical-optical double resonance technique. The observed data are in the range of 0 ≤ v ≤ 22 and 11 ≤ J ≤ 83 with Λ-doubling revealed. A set of Dunham coefficients with Λ-doubling constants has been obtained from the experimental results. The splitting of Λ-doubling increases quadratically with the rotational quantum number J and weakly depends on the vibrational quantum number v. These splitting constants are much larger than those in the Na2 B 1Πu state, which dissociates to Na(3s) + Na(3p). This indicates that the splitting of Λ-doubling in the 51Π g state is affected by both the perturbations by adjacent Σ states and the L-uncoupling.

AB - The splitting of Λ-doubling in the 51Πg Rydberg state of Na2, which dissociates to Na(3s) + Na(4d), has been measured using the high-resolution cw optical-optical double resonance technique. The observed data are in the range of 0 ≤ v ≤ 22 and 11 ≤ J ≤ 83 with Λ-doubling revealed. A set of Dunham coefficients with Λ-doubling constants has been obtained from the experimental results. The splitting of Λ-doubling increases quadratically with the rotational quantum number J and weakly depends on the vibrational quantum number v. These splitting constants are much larger than those in the Na2 B 1Πu state, which dissociates to Na(3s) + Na(3p). This indicates that the splitting of Λ-doubling in the 51Π g state is affected by both the perturbations by adjacent Σ states and the L-uncoupling.

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Λ-Doubling investigation of the 5¹Π_g Rydberg state of Na₂ using optical-optical double resonance spectroscopy

Abstract

All Science Journal Classification (ASJC) codes

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