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Observation of Perturbations in the Probabilities of the GK 1Σ+ g → B 1Σ+ u Spontaneous Transitions of the H2 Molecule : Rotational Branching Ratios. / Astashkevich, S. A.; Kalachev, M. V.; Lavrov, B. P.

In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Vol. 87, No. 2, 01.08.1999, p. 212-218.

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

Harvard

Astashkevich, SA, Kalachev, MV & Lavrov, BP 1999, 'Observation of Perturbations in the Probabilities of the GK 1Σ+ g → B 1Σ+ u Spontaneous Transitions of the H2 Molecule: Rotational Branching Ratios', Optics and Spectroscopy (English translation of Optika i Spektroskopiya), vol. 87, no. 2, pp. 212-218.

APA

Astashkevich, S. A., Kalachev, M. V., & Lavrov, B. P. (1999). Observation of Perturbations in the Probabilities of the GK 1Σ+ g → B 1Σ+ u Spontaneous Transitions of the H2 Molecule: Rotational Branching Ratios. Optics and Spectroscopy (English translation of Optika i Spektroskopiya), 87(2), 212-218.

Vancouver

Astashkevich SA, Kalachev MV, Lavrov BP. Observation of Perturbations in the Probabilities of the GK 1Σ+ g → B 1Σ+ u Spontaneous Transitions of the H2 Molecule: Rotational Branching Ratios. Optics and Spectroscopy (English translation of Optika i Spektroskopiya). 1999 Aug 1;87(2):212-218.

Author

Astashkevich, S. A. ; Kalachev, M. V. ; Lavrov, B. P. / Observation of Perturbations in the Probabilities of the GK 1Σ+ g → B 1Σ+ u Spontaneous Transitions of the H2 Molecule : Rotational Branching Ratios. In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya). 1999 ; Vol. 87, No. 2. pp. 212-218.

BibTeX

@article{c9ce6e3a2b474cb9b8d8c997c9ec78b7,
title = "Observation of Perturbations in the Probabilities of the GK 1Σ+ g → B 1Σ+ u Spontaneous Transitions of the H2 Molecule: Rotational Branching Ratios",
abstract = "The line strength ratios for the R and P branches (the rotational branching ratios) are measured for the first time for the GK 1Σ+ g, v′, J′ → B 1Σ+ u, v″, J″ spontaneous transitions of the H2 molecule. Values of 73 branching ratios for 18 different (v′-v″) bands with the rotational quantum numbers J′ = 1-9 and vibrational quantum numbers v′ = 0-3 and v″ = 0-7 are obtained. Significant discrepancies (exceeding a factor of 20-30) are found between the experimental data and the results of calculation in the adiabatic approximation using the H{\"o}nl-London factors and taking into account the effect of vibrational-rotational interaction in the vibrational wave functions of combining states. These perturbations are more significant than those observed in our previous work for transitions from levels of both the triplet 3p complex of terms and the singlet and triplet 3d complexes of terms of the hydrogen molecule. It was established that the effects of perturbation in the rotational branching ratios strongly depend not only on values of J′ for separate vibronic bands, but also on values of v′ and v″ for fixed values of J′.",
author = "Astashkevich, {S. A.} and Kalachev, {M. V.} and Lavrov, {B. P.}",
year = "1999",
month = aug,
day = "1",
language = "English",
volume = "87",
pages = "212--218",
journal = "OPTICS AND SPECTROSCOPY",
issn = "0030-400X",
publisher = "Pleiades Publishing",
number = "2",

}

RIS

TY - JOUR

T1 - Observation of Perturbations in the Probabilities of the GK 1Σ+ g → B 1Σ+ u Spontaneous Transitions of the H2 Molecule

T2 - Rotational Branching Ratios

AU - Astashkevich, S. A.

AU - Kalachev, M. V.

AU - Lavrov, B. P.

PY - 1999/8/1

Y1 - 1999/8/1

N2 - The line strength ratios for the R and P branches (the rotational branching ratios) are measured for the first time for the GK 1Σ+ g, v′, J′ → B 1Σ+ u, v″, J″ spontaneous transitions of the H2 molecule. Values of 73 branching ratios for 18 different (v′-v″) bands with the rotational quantum numbers J′ = 1-9 and vibrational quantum numbers v′ = 0-3 and v″ = 0-7 are obtained. Significant discrepancies (exceeding a factor of 20-30) are found between the experimental data and the results of calculation in the adiabatic approximation using the Hönl-London factors and taking into account the effect of vibrational-rotational interaction in the vibrational wave functions of combining states. These perturbations are more significant than those observed in our previous work for transitions from levels of both the triplet 3p complex of terms and the singlet and triplet 3d complexes of terms of the hydrogen molecule. It was established that the effects of perturbation in the rotational branching ratios strongly depend not only on values of J′ for separate vibronic bands, but also on values of v′ and v″ for fixed values of J′.

AB - The line strength ratios for the R and P branches (the rotational branching ratios) are measured for the first time for the GK 1Σ+ g, v′, J′ → B 1Σ+ u, v″, J″ spontaneous transitions of the H2 molecule. Values of 73 branching ratios for 18 different (v′-v″) bands with the rotational quantum numbers J′ = 1-9 and vibrational quantum numbers v′ = 0-3 and v″ = 0-7 are obtained. Significant discrepancies (exceeding a factor of 20-30) are found between the experimental data and the results of calculation in the adiabatic approximation using the Hönl-London factors and taking into account the effect of vibrational-rotational interaction in the vibrational wave functions of combining states. These perturbations are more significant than those observed in our previous work for transitions from levels of both the triplet 3p complex of terms and the singlet and triplet 3d complexes of terms of the hydrogen molecule. It was established that the effects of perturbation in the rotational branching ratios strongly depend not only on values of J′ for separate vibronic bands, but also on values of v′ and v″ for fixed values of J′.

UR - http://www.scopus.com/inward/record.url?scp=0347659035&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0347659035

VL - 87

SP - 212

EP - 218

JO - OPTICS AND SPECTROSCOPY

JF - OPTICS AND SPECTROSCOPY

SN - 0030-400X

IS - 2

ER -

ID: 33269078