Optical-optical double resonance with two dye lasers

Rotational analysis of the E2Σ-B2Σ system of Ca35Cl

Peter J. Domaille, Timothy Steimle, David O. Harris

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A complete rotational analysis of the E 2Σ-B 2Σ system of CaCl has been accomplished using two tunable dye lasers. The first cw laser is tuned to a known B 2Σ-X 2Σ transition to produce a finite concentration of molecules in a particular quantum state. Subsequently, a second pulsed dye laser is used to record the E 2Σ-B 2Σ excitation spectrum from this state prepared level. The method vastly simplifies an otherwise congested molecular spectrum. The data are combined with previous microwave measurements on the X 2Σ state and optical data on the B2Σ- X2Σ system to give the following molecular constants (cm -1). Uncertainties are 95% confidence limits in the last digit. X2Σ B2Σ E2Σ Te 0 16 856.69(2) 34268.17(98) ωe 369.8(10) 366.8(10) 413.7(16) ωeXe 1.13(20) 1.28(20) 1.67(82) Be 0.1522325(45) 0.1546940(82) 0.163412(17) αe 7.998(39) × 10-4 8.839(67) × 10-4 8.66(10)× 10 -4 γav(spin rotation) 0.00135(6) -0.0652(2) 0.0046(5)

Original languageEnglish (US)
Pages (from-to)4977-4982
Number of pages6
JournalThe Journal of Chemical Physics
Volume68
Issue number11
StatePublished - 1978
Externally publishedYes

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Dye lasers
dye lasers
Microwave measurement
molecular spectra
confidence limits
digits
tunable lasers
Pulsed lasers
pulsed lasers
microwaves
Molecules
Lasers
excitation
lasers
molecules
Uncertainty

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Optical-optical double resonance with two dye lasers : Rotational analysis of the E2Σ-B2Σ system of Ca35Cl. / Domaille, Peter J.; Steimle, Timothy; Harris, David O.

In: The Journal of Chemical Physics, Vol. 68, No. 11, 1978, p. 4977-4982.

Research output: Contribution to journalArticle

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N2 - A complete rotational analysis of the E 2Σ-B 2Σ system of CaCl has been accomplished using two tunable dye lasers. The first cw laser is tuned to a known B 2Σ-X 2Σ transition to produce a finite concentration of molecules in a particular quantum state. Subsequently, a second pulsed dye laser is used to record the E 2Σ-B 2Σ excitation spectrum from this state prepared level. The method vastly simplifies an otherwise congested molecular spectrum. The data are combined with previous microwave measurements on the X 2Σ state and optical data on the B2Σ- X2Σ system to give the following molecular constants (cm -1). Uncertainties are 95% confidence limits in the last digit. X2Σ B2Σ E2Σ Te 0 16 856.69(2) 34268.17(98) ωe 369.8(10) 366.8(10) 413.7(16) ωeXe 1.13(20) 1.28(20) 1.67(82) Be 0.1522325(45) 0.1546940(82) 0.163412(17) αe 7.998(39) × 10-4 8.839(67) × 10-4 8.66(10)× 10 -4 γav(spin rotation) 0.00135(6) -0.0652(2) 0.0046(5)

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