Photoassociation Spectroscopy of Collisional Pairs of Mercury Atoms: Determination of Parameters of Molecular Terms

V. S. Zuev; J. G. Eden; H. C. Tran

doi:10.1134/1.1366744

Photoassociation Spectroscopy of Collisional Pairs of Mercury Atoms: Determination of Parameters of Molecular Terms

V. S. Zuev, J. G. Eden, H. C. Tran

Electrical and Computer Engineering

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Abstract

The photoassociation spectrum of an equilibrium vapor of mercury atoms in the range of 34960-37250 cm^-1 is recorded with the help of a tunable laser in observations of laser-induced fluorescence. The Franck-Condon structure, i.e., periodic variations in absorption intensity against a continuous background, is observed. The structure makes it possible to determine spectroscopic parameters of the upper attractive potential and the lower repulsive potential including that with a van der Waals well. The absorption spectrum of collisional pairs of mercury atoms is calculated using the Numerov-Cooley procedure for integrating the Schrödinger equation. Potential curves of the upper and lower states Hg₂(D1_u) and Hg₂(X0_g⁺ ) are determined by comparing the calculated spectra with the experimental one.

Original language	English (US)
Pages (from-to)	516-525
Number of pages	10
Journal	Optics and Spectroscopy (English translation of Optika i Spektroskopiya)
Volume	90
Issue number	4
DOIs	https://doi.org/10.1134/1.1366744
State	Published - Apr 2001

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics

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10.1134/1.1366744

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@article{0e2a798bfbe34d119a6a7a695d8bf6f5,

title = "Photoassociation Spectroscopy of Collisional Pairs of Mercury Atoms: Determination of Parameters of Molecular Terms",

abstract = "The photoassociation spectrum of an equilibrium vapor of mercury atoms in the range of 34960-37250 cm-1 is recorded with the help of a tunable laser in observations of laser-induced fluorescence. The Franck-Condon structure, i.e., periodic variations in absorption intensity against a continuous background, is observed. The structure makes it possible to determine spectroscopic parameters of the upper attractive potential and the lower repulsive potential including that with a van der Waals well. The absorption spectrum of collisional pairs of mercury atoms is calculated using the Numerov-Cooley procedure for integrating the Schr{\"o}dinger equation. Potential curves of the upper and lower states Hg2(D1u) and Hg2(X0g+ ) are determined by comparing the calculated spectra with the experimental one.",

author = "Zuev, {V. S.} and Eden, {J. G.} and Tran, {H. C.}",

note = "Funding Information: ACKNOWLEDGMENTS We are grateful to Dr. M. Dolg for kindly placing calculation data at our disposal. This work was supported by the Russian Foundation for Basic Research (projects no. 00-02-18950 and no. 00-15-96582) and partially by the US NSF.",

year = "2001",

month = apr,

doi = "10.1134/1.1366744",

language = "English (US)",

volume = "90",

pages = "516--525",

journal = "Optics and Spectroscopy (English translation of Optika i Spektroskopiya)",

issn = "0030-400X",

publisher = "Springer",

number = "4",

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TY - JOUR

T1 - Photoassociation Spectroscopy of Collisional Pairs of Mercury Atoms

T2 - Determination of Parameters of Molecular Terms

AU - Zuev, V. S.

AU - Eden, J. G.

AU - Tran, H. C.

N1 - Funding Information: ACKNOWLEDGMENTS We are grateful to Dr. M. Dolg for kindly placing calculation data at our disposal. This work was supported by the Russian Foundation for Basic Research (projects no. 00-02-18950 and no. 00-15-96582) and partially by the US NSF.

PY - 2001/4

Y1 - 2001/4

N2 - The photoassociation spectrum of an equilibrium vapor of mercury atoms in the range of 34960-37250 cm-1 is recorded with the help of a tunable laser in observations of laser-induced fluorescence. The Franck-Condon structure, i.e., periodic variations in absorption intensity against a continuous background, is observed. The structure makes it possible to determine spectroscopic parameters of the upper attractive potential and the lower repulsive potential including that with a van der Waals well. The absorption spectrum of collisional pairs of mercury atoms is calculated using the Numerov-Cooley procedure for integrating the Schrödinger equation. Potential curves of the upper and lower states Hg2(D1u) and Hg2(X0g+ ) are determined by comparing the calculated spectra with the experimental one.

AB - The photoassociation spectrum of an equilibrium vapor of mercury atoms in the range of 34960-37250 cm-1 is recorded with the help of a tunable laser in observations of laser-induced fluorescence. The Franck-Condon structure, i.e., periodic variations in absorption intensity against a continuous background, is observed. The structure makes it possible to determine spectroscopic parameters of the upper attractive potential and the lower repulsive potential including that with a van der Waals well. The absorption spectrum of collisional pairs of mercury atoms is calculated using the Numerov-Cooley procedure for integrating the Schrödinger equation. Potential curves of the upper and lower states Hg2(D1u) and Hg2(X0g+ ) are determined by comparing the calculated spectra with the experimental one.

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DO - 10.1134/1.1366744

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SN - 0030-400X

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JO - Optics and Spectroscopy (English translation of Optika i Spektroskopiya)

JF - Optics and Spectroscopy (English translation of Optika i Spektroskopiya)

IS - 4

ER -

Photoassociation Spectroscopy of Collisional Pairs of Mercury Atoms: Determination of Parameters of Molecular Terms

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