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  • 1
    Electronic Resource
    Electronic Resource
    Collisional depolarization of NO2 fluorescence as studied by Hanle effect measurements (1988)
    Springer
    The European physical journal 8 (1988), S. 279-288 
    Details
    ISSN: 1434-6079
    Keywords: 32.80 ; 33.80 ; 33.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We report on collisional depolarization of NO2 fluorescence with use of Hanle effect (zero magnetic field level crossing) experiments. Single fine structure levels of NO2 in several regions of the visible absorption spectrum predominantly near 593 nm and 514 nm are prepared by selective optical excitation and the depolarization of the fluorescence light versus a magnetic field is investigated. We find that the Hanle signal is in general a superposition of two Lorentzian shaped signals, each with a characteristic dependence on light intensity and NO2 pressure. For NO2 pressures 〉1 µ bar the collisional depolarization follows simple Stern-Volmer kinetics. However, an unusual pressure dependence is observed at NO2 pressures 〈1 µ bar. In the same pressure range (〈1 µ bar) we see also an unexpected resonance with significantly different properties as the Hanle signal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01436952
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Anomalous laser saturation resonances in NO2 (1986)
    Springer
    The European physical journal 1 (1986), S. 403-420 
    Details
    ISSN: 1434-6079
    Keywords: 32.80 ; 33.80 ; 33.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We describe an unusual resonance in the total fluorescence intensity which appears when two unidirectional and spatially separated light beams intersect a beam of freely propagating NO2 molecules. No conventional explanation of the observations seems to be possible. However the experimental results are in agreement with previously reported experiments and with the previously introduced assumption, that underlying the conventionally expected quantum states of the molecule is a substructure which evolves irreversibly in time.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01431183
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    Paper (German National Licenses)
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