Optical-optical double resonance with two dye lasers: Rotational analysis of the E2Σ-B2Σ system of Ca35Cl

Peter J. Domaille; Timothy C. Steimle; David O. Harris

doi:10.1063/1.435655

Optical-optical double resonance with two dye lasers: Rotational analysis of the E²Σ-B²Σ system of Ca³⁵Cl

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

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13 Scopus citations

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 T_e 0 16 856.69(2) 34268.17(98) ω_e 369.8(10) 366.8(10) 413.7(16) ω_eX_e 1.13(20) 1.28(20) 1.67(82) B_e 0.1522325(45) 0.1546940(82) 0.163412(17) α_e 7.998(39) × 10^-4 8.839(67) × 10^-4 8.66(10)× 10 ^-4 γ_av(spin rotation) 0.00135(6) -0.0652(2) 0.0046(5)

Original language	English (US)
Pages (from-to)	4977-4982
Number of pages	6
Journal	The Journal of chemical physics
Volume	68
Issue number	11
DOIs	https://doi.org/10.1063/1.435655
State	Published - 1978
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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@article{654e156d4181477db3d571ef5f69e3d3,

title = "Optical-optical double resonance with two dye lasers: Rotational analysis of the E2Σ-B2Σ system of Ca35Cl",

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)",

author = "Domaille, {Peter J.} and Steimle, {Timothy C.} and Harris, {David O.}",

year = "1978",

doi = "10.1063/1.435655",

language = "English (US)",

volume = "68",

pages = "4977--4982",

journal = "The Journal of chemical physics",

issn = "0021-9606",

publisher = "American Institute of Physics Publising LLC",

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T1 - Optical-optical double resonance with two dye lasers

T2 - Rotational analysis of the E2Σ-B2Σ system of Ca35Cl

AU - Domaille, Peter J.

AU - Steimle, Timothy C.

AU - Harris, David O.

PY - 1978

Y1 - 1978

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)

AB - 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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Optical-optical double resonance with two dye lasers: Rotational analysis of the E²Σ-B²Σ system of Ca³⁵Cl

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