Emission spectra of calcium dimer. The A 1∑u+ - X 1∑g+ system

M. A. Gondal; M. A. Khan; M. H. Rais

doi:10.1016/0009-2614(95)00812-I

Emission spectra of calcium dimer. The A ¹∑_u⁺ - X ¹∑_g⁺ system

M. A. Gondal^*, M. A. Khan, M. H. Rais

^*Corresponding author for this work

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

13 Scopus citations

Abstract

The A ¹∑_u⁺-X ¹∑ _g⁺ spectral system of Ca₂ has been studied in two independent experiments. The collision-induced fluorescence due to this band was investigated following the resonant excitation of the 4s4p ³P₁ metastable state of calcium using a Nd : YAG laser pumped dye laser. In another experiment, a low current glow discharge in calcium vapor was used. We have assigned 86 spectral lines to this band system for vibrational quantum numbers (v′ = 10-13 and v″ = 0) by applying a Dunham type analysis. The A ¹∑_u⁺ state dissociation energy D′_e is estimated to be ~ 8693.6 ± 1 cm^-1. The processes involved in the collisional excitation of the upper molecular state are discussed.

Original language	English
Pages (from-to)	94-101
Number of pages	8
Journal	Chemical Physics Letters
Volume	243
Issue number	1-2
DOIs	https://doi.org/10.1016/0009-2614(95)00812-I
State	Published - 8 Sep 1995

Bibliographical note

Funding Information:
This work is a part of the Laser Research Program (Project: 12043) supported by the Research Institute, KFUPM. The authors are thankful to Dr. H.A. Yamani and Dr F.F. AI-Adel for their continuing support and encouragement.

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

Access to Document

10.1016/0009-2614(95)00812-I

Cite this

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title = "Emission spectra of calcium dimer. The A 1∑u+ - X 1∑g+ system",

abstract = "The A 1∑u+-X 1∑ g+ spectral system of Ca2 has been studied in two independent experiments. The collision-induced fluorescence due to this band was investigated following the resonant excitation of the 4s4p 3P1 metastable state of calcium using a Nd : YAG laser pumped dye laser. In another experiment, a low current glow discharge in calcium vapor was used. We have assigned 86 spectral lines to this band system for vibrational quantum numbers (v′ = 10-13 and v″ = 0) by applying a Dunham type analysis. The A 1∑u+ state dissociation energy D′e is estimated to be ~ 8693.6 ± 1 cm-1. The processes involved in the collisional excitation of the upper molecular state are discussed.",

author = "Gondal, {M. A.} and Khan, {M. A.} and Rais, {M. H.}",

note = "Funding Information: This work is a part of the Laser Research Program (Project: 12043) supported by the Research Institute, KFUPM. The authors are thankful to Dr. H.A. Yamani and Dr F.F. AI-Adel for their continuing support and encouragement.",

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AU - Gondal, M. A.

AU - Khan, M. A.

AU - Rais, M. H.

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PY - 1995/9/8

Y1 - 1995/9/8

N2 - The A 1∑u+-X 1∑ g+ spectral system of Ca2 has been studied in two independent experiments. The collision-induced fluorescence due to this band was investigated following the resonant excitation of the 4s4p 3P1 metastable state of calcium using a Nd : YAG laser pumped dye laser. In another experiment, a low current glow discharge in calcium vapor was used. We have assigned 86 spectral lines to this band system for vibrational quantum numbers (v′ = 10-13 and v″ = 0) by applying a Dunham type analysis. The A 1∑u+ state dissociation energy D′e is estimated to be ~ 8693.6 ± 1 cm-1. The processes involved in the collisional excitation of the upper molecular state are discussed.

AB - The A 1∑u+-X 1∑ g+ spectral system of Ca2 has been studied in two independent experiments. The collision-induced fluorescence due to this band was investigated following the resonant excitation of the 4s4p 3P1 metastable state of calcium using a Nd : YAG laser pumped dye laser. In another experiment, a low current glow discharge in calcium vapor was used. We have assigned 86 spectral lines to this band system for vibrational quantum numbers (v′ = 10-13 and v″ = 0) by applying a Dunham type analysis. The A 1∑u+ state dissociation energy D′e is estimated to be ~ 8693.6 ± 1 cm-1. The processes involved in the collisional excitation of the upper molecular state are discussed.

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