Optical-optical double resonance spectroscopy of the 21Πg state of na2 using an ultrasensitive ionization detector

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

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6 Citations (Scopus)


Using optical-optical double resonance and an ultrasensitive ionization detector, we have been able to extensively study a wide range of internuclear distances for the 21Πg state of Na2. A total of 80 vibrational levels (0 ≤ v ≤ 43 are from previous work using filter-PMT detection) which covered more than 99.9% of the well depth were observed in this state. The Rydberg-Klein-Rees (RKR) potential energy curve was constructed with a maximum outer turning point R79+ = 18.08 Å. The potential curve at long range, where it can be described in terms of Cn coefficients, is also discussed.

Original languageEnglish
Pages (from-to)437-449
Number of pages13
JournalJournal of molecular spectroscopy
Issue number2
Publication statusPublished - 1994 Jan 1

All Science Journal Classification (ASJC) codes

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

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