Optical-optical double resonance spectroscopy of the 4 1Σ g+ "shelf" state of Na2 using an ultrasensitive ionization detector

Chin Chun Tsai; John T. Bahns; He Wang; Thou Jen Whang; William C. Stwalley

doi:10.1063/1.468178

Optical-optical double resonance spectroscopy of the 4 ¹Σ _g⁺ "shelf" state of Na₂ using an ultrasensitive ionization detector

Chin Chun Tsai, John T. Bahns, He Wang, Thou Jen Whang, William C. Stwalley

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

20 Citations (Scopus)

Abstract

The 4 ¹Σ_g⁺ "shelf" state of Na₂ was extensively investigated using optical-optical double resonance spectroscopy and an ultrasensitive ionization detector. A total of 179 vibrational levels-(0≤v≤127 are from previous work by using filter-photomultiplier tube fluorescence detection) were observed in this state, which covered more than 99.8% of the well depth. The Rydberg-Klein-Rees (RKR) potential energy curve was constructed with maximum outer turning point R ¹⁷⁸⁺ = 17.60 Å. The comparison of the long range portion of the RKR potential energy curve and the potential curve calculated from V(R) = Σ_nC_n/Rⁿ is discussed. Avoided crossings around the shelf with the 3 ¹Σ_g⁺ state and near dissociation with the 5 ¹Σ_g⁺ state are also discussed.

Original language	English
Pages (from-to)	25-30
Number of pages	6
Journal	The Journal of Chemical Physics
Volume	101
Issue number	1
DOIs	https://doi.org/10.1063/1.468178
Publication status	Published - 1994

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1063/1.468178

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title = "Optical-optical double resonance spectroscopy of the 4 1Σ g+ {"}shelf{"} state of Na2 using an ultrasensitive ionization detector",

abstract = "The 4 1Σg+ {"}shelf{"} state of Na2 was extensively investigated using optical-optical double resonance spectroscopy and an ultrasensitive ionization detector. A total of 179 vibrational levels-(0≤v≤127 are from previous work by using filter-photomultiplier tube fluorescence detection) were observed in this state, which covered more than 99.8% of the well depth. The Rydberg-Klein-Rees (RKR) potential energy curve was constructed with maximum outer turning point R 178+ = 17.60 {\AA}. The comparison of the long range portion of the RKR potential energy curve and the potential curve calculated from V(R) = ΣnCn/Rn is discussed. Avoided crossings around the shelf with the 3 1Σg+ state and near dissociation with the 5 1Σg+ state are also discussed.",

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T1 - Optical-optical double resonance spectroscopy of the 4 1Σ g+ "shelf" state of Na2 using an ultrasensitive ionization detector

AU - Tsai, Chin Chun

AU - Bahns, John T.

AU - Wang, He

AU - Whang, Thou Jen

AU - Stwalley, William C.

PY - 1994

Y1 - 1994

N2 - The 4 1Σg+ "shelf" state of Na2 was extensively investigated using optical-optical double resonance spectroscopy and an ultrasensitive ionization detector. A total of 179 vibrational levels-(0≤v≤127 are from previous work by using filter-photomultiplier tube fluorescence detection) were observed in this state, which covered more than 99.8% of the well depth. The Rydberg-Klein-Rees (RKR) potential energy curve was constructed with maximum outer turning point R 178+ = 17.60 Å. The comparison of the long range portion of the RKR potential energy curve and the potential curve calculated from V(R) = ΣnCn/Rn is discussed. Avoided crossings around the shelf with the 3 1Σg+ state and near dissociation with the 5 1Σg+ state are also discussed.

AB - The 4 1Σg+ "shelf" state of Na2 was extensively investigated using optical-optical double resonance spectroscopy and an ultrasensitive ionization detector. A total of 179 vibrational levels-(0≤v≤127 are from previous work by using filter-photomultiplier tube fluorescence detection) were observed in this state, which covered more than 99.8% of the well depth. The Rydberg-Klein-Rees (RKR) potential energy curve was constructed with maximum outer turning point R 178+ = 17.60 Å. The comparison of the long range portion of the RKR potential energy curve and the potential curve calculated from V(R) = ΣnCn/Rn is discussed. Avoided crossings around the shelf with the 3 1Σg+ state and near dissociation with the 5 1Σg+ state are also discussed.

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