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- O. Oehler
- Chemistry Department, ETH-Zentrum, CH−8092 Zürich, Switzerland
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- D. A. Smith
- Chemistry Department, ETH-Zentrum, CH−8092 Zürich, Switzerland
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- K. Dressler
- Chemistry Department, ETH-Zentrum, CH−8092 Zürich, Switzerland
抄録
<jats:p>The visible and near-infrared luminescence spectrum of pure solid nitrogen has been reinvestigated. Spectral intensity distributions, decay curves, and the temperature dependence of these characteristics have been measured in a variable-temperature liquid-helium cryostat, using pulsed electron-beam excitation and a photoelectrically recording spectrometer. The parity-forbidden transitions within the ground configuration of trapped atomic nitrogen, 2P→2D and 2D→4S, are observed as dipole radiation which is induced by the dynamical perturbing fields of inter- and intramolecular vibrations. The presence of slowly relaxing, vibrationally excited N2 molecules, 3⩽v⩽13, is confirmed. The vibrational excitation of N2 and electronic excitation of N is ascribed to a common process, namely to the quenching of molecular triplet excitons, N2 A 3Σ, v′≃0, by ground-state atoms, N 4S. This process yields N (2P or 2D) and N2 X 1Σ, v″, at adjacent lattice sites, with initial distributions of v″ populations that show half-widths spanning approximately four quanta, and maxima near v″≃9.</jats:p>
収録刊行物
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- The Journal of Chemical Physics
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The Journal of Chemical Physics 66 (5), 2097-2107, 1977-03-01
AIP Publishing
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詳細情報 詳細情報について
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- CRID
- 1360016869461063936
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- NII論文ID
- 30015684124
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- DOI
- 10.1063/1.434171
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- ISSN
- 10897690
- 00219606
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- データソース種別
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