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  • 2015-2019
  • 2000-2004  (6)
  • 1985-1989
  • 1940-1944
  • 1930-1934
  • 1905-1909
  • 1900-1904
  • 1860-1869
  • 1830-1839
  • 2017
  • 2003  (3)
  • 2001  (3)
  • PACS. 32.70.Cs Oscillator strengths, lifetimes, transition moments  (3)
  • PACS. 32.80.Pj Optical cooling of atoms; trapping – 42.50.Vk Mechanical effects of light on atoms, molecules, electrons, and ions  (3)
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  • 2015-2019
  • 2000-2004  (6)
  • 1985-1989
  • 1940-1944
  • 1930-1934
    • +
Year
  • 2017
  • 2003  (3)
  • 2001  (3)
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Lifetime measurements of some levels belonging to the 3p 5nd ( , 5, 6, 7) configuration of ArI (2003)
    Springer
    The European physical journal 23 (2003), S. 229-231 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 32.70.Cs Oscillator strengths, lifetimes, transition moments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Lifetimes of some 3p5nd (n = 4, 5, 6, 7) levels of neutral argon have been measured by high frequency deflection technique with a delayed coincidence single photon counting arrangement. The measurements have been performed under conditions where pressure dependent effects are negligible. Lifetimes of some of the levels have been measured for the first time. The results have been compared with other experimental and theoretical values.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjd/e2003-00078-8
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Atom optics with rotating Bose-Einstein condensates (2003)
    Springer
    The European physical journal 22 (2003), S. 385-391 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 32.80.Pj Optical cooling of atoms; trapping – 42.50.Vk Mechanical effects of light on atoms, molecules, electrons, and ions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The atom optics of Bose-Einstein condensates containing a vortex of circulation one is discussed. We first analyze in detail the reflection of such a condensate falling on an atomic mirror. In a second part, we consider a rotating condensate in the case of attractive interactions. We show that for sufficiently large nonlinearity the rotational symmetry of the rotating condensate is broken.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjd/e2003-00044-6
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Theoretical transition probabilities and lifetimes in nickel-like Se , Y and Sn ions (2003)
    Springer
    The European physical journal 23 (2003), S. 5-13 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 32.70.Cs Oscillator strengths, lifetimes, transition moments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The 17 levels of the 3 d 10 , 3 d 9 4 s and 3 d 9 4 p configurations, and the electric-dipole transitions among these levels are calculated for the three nickel-like ions Se6+, Y11+ and Sn22+ by using large-scale multiconfiguration Dirac-Fock wavefunctions. From these computations, the excitation energies and transition probabilities as well as the lifetimes of 3 d 9 4 p levels are derived, including all dominant effects of relativity, correlation and of the rearrangement of the electron density within the same framework. Comparison is made with the scarce number of experimental data and previous semi-empirical computations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjd/e2003-00008-x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Radiative lifetimes of 7d, 8d 1D2 excited states of Hg I (2001)
    Springer
    The European physical journal 13 (2001), S. 159-163 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 32.70.Cs Oscillator strengths, lifetimes, transition moments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Radiative lifetimes of 7d, 8d 1 D 2 excited states of Hg I are measured using pulsed two-photon excitation from the ground [Xe]5d 106s 2 1 S 0 mercury state, detecting the decay of the laser-induced fluorescence. The results are compared with theoretical values, obtained by means of a Hartree-Fock single configuration method, taking into account electron configuration interaction. The radiative lifetime value dependence on the effective principal quantum number for the nd 1 D 2 series is analyzed and compared with the quantum defect dependence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530170262
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Single-beam optical bottle for cold atoms using a conical lens (2001)
    Springer
    The European physical journal 14 (2001), S. 373-376 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 32.80.Pj Optical cooling of atoms; trapping – 42.50.Vk Mechanical effects of light on atoms, molecules, electrons, and ions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We report a new method to generate an optical dipole potential with a null intensity region surrounded in all directions by light walls. This is achieved with a simple scheme based on a conical lens. Applications to optical trapping of neutral atoms are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530170205
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    A continuous cold atomic beam from a magneto-optical trap (2001)
    Springer
    The European physical journal 15 (2001), S. 245-249 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 32.80.Pj Optical cooling of atoms; trapping – 42.50.Vk Mechanical effects of light on atoms, molecules, electrons, and ions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We have developed and characterized a new method to produce a continuous beam of cold atoms from a standard vapour-cell magneto-optical trap (MOT). The experimental apparatus is very simple. Using a single laser beam it is possible to hollow out in the source MOT a direction of unbalanced radiation pressure along which cold atoms can be accelerated out of the trap. The transverse cooling process that takes place during the extraction reduces the beam divergence. The atomic beam is used to load a magneto-optical trap operating in an ultra-high vacuum environment. At a vapour pressure of 10-8mbar in the loading cell, we have produced a continuous flux of 7×107atoms/s at the recapture cell with a mean velocity of 14 m/s. A comparison of this method with a pulsed transfer scheme is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530170172
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    Paper (German National Licenses)
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