Výsledky vyhledávání - "E. L. Chappell"

Improved multipass optics for diode laser spectroscopy

Autor: J. T. Munley, T. A. Hu, E. L. Chappell, S. W. Sharpe

Publikováno v: Review of Scientific Instruments. 64:3380-3383

Feedback between optical elements can be a major source of noise when trying to attain high sensitivity in infrared absorption experiments. We find that a conventional White‐cell optical arrangement introduces etaloning fringes that modulate the pe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd630815ab2e46f5d54a7e62c994dc45
https://doi.org/10.1063/1.1144308

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Infrared, diode laser spectroscopy of the Ar–N2O complex: Observation of the intermolecular bending mode in combination with the highest frequency intramolecular stretching mode

Autor: T. A. Hu, S. W. Sharpe, E. L. Chappell

Publikováno v: The Journal of Chemical Physics. 98:6162-6169

Rotationally resolved vibrational spectra consisting of a‐type transitions have been observed for the low‐frequency, intermolecular bending mode in combination with the highest frequency, intramolecular stretching mode of Ar–N2O. Analysis of th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b23a0bf4207ce58bc6419939f9150ac0
https://doi.org/10.1063/1.465101

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The 2A1–2E electronic spectrum of methoxy, CH3O: Vibrational progressions, and spin‐orbit and Jahn–Teller couplings

Autor: E. L. Chappell, S. C. Hulegaard, P. G. Carrick, P. C. Engelking, S. D. Brossard

Publikováno v: The Journal of Chemical Physics. 84:2459-2465

The 310 nm electronic emission system of jet‐cooled methoxy radical has been examined at 4 cm−1 resolution. The spectrum shows extensive progressions in the upper and lower state CO stretch frequencies, v’3 =660±2 cm−1 and v‘3 =1045±3 cm�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e561b82b83a6827660daf315207cc13f
https://doi.org/10.1063/1.450364

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Methylnitrene free radical. Ground state vibrational fundamentals and harmonic force field from jet‐cooled emission spectra of theÃ 3E–X̃ 3A2band system

Autor: P. C. Engelking, E. L. Chappell

Publikováno v: The Journal of Chemical Physics. 89:6007-6016

The A 3E–X 3A2 UV emission spectra of the jet‐cooled methylnitrene radical CH3N and the isotopomers 13CH3N and CD3N have been examined with moderate resolution. Analysis of the vibrational band progressions gives a complete set of all six ground

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::292d81d4694e243217ccacd0a9312853
https://doi.org/10.1063/1.455415

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