Results 211 to 220 of about 271,562 (267)
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THE EMISSION SPECTRUM OF ALUMINUM MONOFLUORIDE I
Canadian Journal of Physics, 1953Two band systems of the emission spectrum of AlF are described, viz. the far ultraviolet A1Π − X1Σ system discovered by Rochester in absorption, and a new system due to a 1Σ − A1Π transition in the region 8175 Å–6670 Å. A revised vibrational analysis of the A1Π − X1Σ system is given as well as the vibrational and rotational analyses of the new system,
S. M. Naudé, T. J. Hugo
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Chemical Physics Letters, 1989
Abstract Cyanogen absorption, excitation and dispersed fluorescence spectra have been measured in the 220 nm region. The radiative lifetime is 1.34 μs under collisionless conditions. The fluorescence spectrum following excitation of the 4 0 1 band consists of four simple progressions.
Samuel A. Barts, Joshua B. Halpern
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Abstract Cyanogen absorption, excitation and dispersed fluorescence spectra have been measured in the 220 nm region. The radiative lifetime is 1.34 μs under collisionless conditions. The fluorescence spectrum following excitation of the 4 0 1 band consists of four simple progressions.
Samuel A. Barts, Joshua B. Halpern
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Chemical Physics Letters, 1991
Abstract Laser excitation at 206–232 nm of a supersonic free jet of Cd(CH3)2 produced an emission due to one-photon absorption from vibrationally cold A CdCH3. The 0—0 line was at 444.1 nm and ground-state vibrational frequencies of 345 cm−1 (CdCH3 stretch) and 998 cm−1 (CH3 umbrella mode) were measured. Much stronger emissions caused by multiphoton
Abraham Penner +2 more
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Abstract Laser excitation at 206–232 nm of a supersonic free jet of Cd(CH3)2 produced an emission due to one-photon absorption from vibrationally cold A CdCH3. The 0—0 line was at 444.1 nm and ground-state vibrational frequencies of 345 cm−1 (CdCH3 stretch) and 998 cm−1 (CH3 umbrella mode) were measured. Much stronger emissions caused by multiphoton
Abraham Penner +2 more
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The emission spectrum of 200Hg127I
Journal of Molecular Spectroscopy, 1986Abstract The ultraviolet emission systems of HgI—C → X, D → X, F3 → X, G → X, and H → X—are photographed and analyzed using tesla-discharge sources containing isotopically pure 200Hg. The previous assignment for F3 → X is revised, the main change being a decrease by 3 units in the v″ numbering.
Carl Salter +3 more
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Journal of Molecular Spectroscopy, 1973
Abstract Bands in the region 2100–2600 A observed in emission by passing silicon tetrafluoride through an electrodeless discharge have been investigated and assigned to SiF3 insteadd of SiF2.
J. Ling-Fai Wang +2 more
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Abstract Bands in the region 2100–2600 A observed in emission by passing silicon tetrafluoride through an electrodeless discharge have been investigated and assigned to SiF3 insteadd of SiF2.
J. Ling-Fai Wang +2 more
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Journal of Molecular Spectroscopy, 1982
Abstract The emission spectrum of B2 was reinvestigated under high resolution. Six bands of 11B2 (0-0, 1-1, 1-0, 2-1, 3-2, and 0–1) as well as four bands of 10B11B (0-0, 1-0, 2-1, and 3-2) were rotationally analysed. Accurate rotational and vibrational constants were obtained. The triplet character of the transition ( 3 Σ u − -X
H. Bredohl, I. Dubois, P. Nzohabonayo
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Abstract The emission spectrum of B2 was reinvestigated under high resolution. Six bands of 11B2 (0-0, 1-1, 1-0, 2-1, 3-2, and 0–1) as well as four bands of 10B11B (0-0, 1-0, 2-1, and 3-2) were rotationally analysed. Accurate rotational and vibrational constants were obtained. The triplet character of the transition ( 3 Σ u − -X
H. Bredohl, I. Dubois, P. Nzohabonayo
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Physical Review A, 1987
The two-photon emission spectrum of a strongly driven two-level atom is defined and calculated. Such a spectrum reveals details of non-Markovian dynamics which are not observable in the usual experiments. It is shown that a clear separation of Markovian and non-Markovian regimes is possible in the two-photon emission spectrum.
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The two-photon emission spectrum of a strongly driven two-level atom is defined and calculated. Such a spectrum reveals details of non-Markovian dynamics which are not observable in the usual experiments. It is shown that a clear separation of Markovian and non-Markovian regimes is possible in the two-photon emission spectrum.
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Journal of Molecular Spectroscopy, 1966
Abstract The emission spectrum from a high frequency discharge through chlorine vapor has been reinvestigated under high resolution. Natural chlorine and the isotope 35Cl2 were used. Rotational analyses of thirty-eight bands attributed to the 35Cl2+ molecule-ion and four of the isotopic molecule (35Cl37Cl)+ have been carried out.
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Abstract The emission spectrum from a high frequency discharge through chlorine vapor has been reinvestigated under high resolution. Natural chlorine and the isotope 35Cl2 were used. Rotational analyses of thirty-eight bands attributed to the 35Cl2+ molecule-ion and four of the isotopic molecule (35Cl37Cl)+ have been carried out.
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Journal of Molecular Spectroscopy, 1965
Abstract The A2Σ+-X2Π system of CF has been investigated with high dispersion in the region 2190–2965 A and the rotational structure of 18 bands analyzed. Vibrational and rotational constants have been determined for levels up to v′ = 1 and v″ = 9.
T.L Porter, D.E Mann, N Acquista
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Abstract The A2Σ+-X2Π system of CF has been investigated with high dispersion in the region 2190–2965 A and the rotational structure of 18 bands analyzed. Vibrational and rotational constants have been determined for levels up to v′ = 1 and v″ = 9.
T.L Porter, D.E Mann, N Acquista
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Journal of Molecular Spectroscopy, 1983
Abstract The emission bands, first observed by R. F. Barrow, G. Drummond, and S. Walker (Proc. Phys. Soc.A67, 186–187 (1954)) in a discharge through CCl4, have been rotationally analyzed and found to be due to the A1Π-X1Σ+ transition of CCl+.
H. Bredohl, I. Dubois, F. Melen
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Abstract The emission bands, first observed by R. F. Barrow, G. Drummond, and S. Walker (Proc. Phys. Soc.A67, 186–187 (1954)) in a discharge through CCl4, have been rotationally analyzed and found to be due to the A1Π-X1Σ+ transition of CCl+.
H. Bredohl, I. Dubois, F. Melen
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