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  • Quantum optics, physics of lasers, nonlinear optics, classical optics  (2)
  • 42.50.Vk  (1)
  • American Physical Society (APS)  (2)
  • Springer  (1)
  • National Academy of Sciences
  • 1
    Electronic Resource
    Electronic Resource
    Imaging and focusing of an atomic beam with a large period standing light wave (1992)
    Springer
    Applied physics 54 (1992), S. 375-379 
    Details
    ISSN: 1432-0649
    Keywords: 32.80.−t ; 42.50.Vk ; 07.77.+P
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A novel atomic lens scheme is reported. A cylindrical lens potential was created by a large period (⋍ 45 μm) standing light wave perpendicular to a beam of metastable He atoms. The lens aperture (25 μm) was centered in one antinode of the standing wave; the laser frequency was nearly resonant with the atomic transition 23 S 1−23 P 2 (λ=1.083 μm) and the interaction time was significantly shorter than the spontaneous lifetime (100 ns) of the excited state. The thickness of the lens was given by the laser beam waist (40 μm) in the direction of the atomic beam. Preliminary results are presented, where an atomic beam is focused down to a spot size of 4 μm. Also, a microfabricated grating with a period of 8 μm was imaged. We discuss the principle limitations of the spatial resolution of the lens given by spherical and chromatic aberrations as well as by diffraction. The fact that this lens is very thin offers new perspectives for deep focusing into the nm range.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00325383
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    Paper (German National Licenses)
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    Motion-induced signal revival in pulsed Rydberg four-wave mixing beyond the frozen-gas limit (2014)
    American Physical Society (APS)
    Details
    Publication Date: 2014-11-04
    Description: Author(s): B. Huber, A. Kölle, and T. Pfau Time-resolved signals from a pulsed four-wave mixing process via a Rydberg state on the nanosecond timescale has been observed in rubidium vapor in a regime where the atoms’ evolution depends on the velocity as the Doppler effect has a significant influence on the temporal evolution. [Phys. Rev. A 90, 053806] Published Mon Nov 03, 2014
    Keywords: Quantum optics, physics of lasers, nonlinear optics, classical optics
    Print ISSN: 1050-2947
    Electronic ISSN: 1094-1622
    Topics: Physics
    Published by American Physical Society (APS)
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  • 3
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    Four-wave mixing involving Rydberg states in thermal vapor (2012)
    American Physical Society (APS)
    Details
    Publication Date: 2012-06-22
    Description: Author(s): A. Kölle, G. Epple, H. Kübler, R. Löw, and T. Pfau We present experimental results on nondegenerate four-wave mixing in a thermal vapor cell of rubidium atoms via highly excited Rydberg states. We observe sub-Doppler spectral features and a large sensitivity of the mixed light mode to small electric fields due to the large polarizabilities of the in... [Phys. Rev. A 85, 063821] Published Thu Jun 21, 2012
    Keywords: Quantum optics, physics of lasers, nonlinear optics, classical optics
    Print ISSN: 1050-2947
    Electronic ISSN: 1094-1622
    Topics: Physics
    Published by American Physical Society (APS)
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