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  • Articles: DFG German National Licenses  (3)
  • 78.60.Fi  (1)
  • Key words Sonograpy  (1)
  • PACS. 32.50.+d Fluorescence, phosphorescence (including quenching)[:AND:] 36.40.-c Atomic and molecular clusters  (1)
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  • Articles: DFG German National Licenses  (3)
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Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Photon emission from adsorbed C60 molecules with sub-nanometer lateral resolution (1993)
    Springer
    Applied physics 57 (1993), S. 513-516 
    Details
    ISSN: 1432-0630
    Keywords: 61.16.Ch ; 73.40.Gk ; 78.60.Fi
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract We present the first experimental demonstration of spatially resolved photon emission of individual molecules on a surface. A scanning tunneling microscope (STM) was used as a local electron source to excite photon emission from hexagonal arrays of C60 molecules on Au(110) surfaces. Specifically, we show that in maps of photon emission intensities, C60 fullerenes appear as arrays of individual light emitters 4 Å in diameter and separated by 10 Å. Comparison with simultaneously recorded STM images reveals, that most intense emission is detected when the STM tip is centered above a molecule. The results demonstrate the highest spatial resolution of light emission to date using a scanning probe technique.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00331750
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Diagnostik pulmonaler Erkrankungen mit transthorakaler Sonographie (1998)
    Springer
    Der Radiologe 38 (1998), S. 364-369 
    Details
    ISSN: 1432-2102
    Keywords: Schlüsselwörter Sonographie ; Pulmonale Erkrankungen ; Key words Sonograpy ; Pulmonary diseases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The indications or ultrasound in the evaluation of pulmonary disorders are described. Clinical applications are several lung diseases in adults and especially in children. In specific, well-defined applications, the feasibilties of ultrasound are promising. Sonography provides important additional information to chest X-ray and is even superior to CT under special circumstances. Pulmonary sonography is a useful link between conventional X-ray and more expensive cross-sectional imaging. In the evaluation of pulmonary diseases at present the potential of ultrasound is not optimally used.
    Notes: Zusammenfassung Die Indikationen der Sonographie in der Diagnostik pulmonaler Erkrankungen werden dargestellt. Klinische Anwendungen ergeben sich bei zahlreichen Lungenerkrankungen des Erwachsenen und ganz besonders des Kindes. Bei exakt definierten Fragestellungen ist der Ultraschall überraschend aussagekräftig. Die Sonographie liefert wichtige Zusatzinformationen zur konventionellen Röntgendiagnostik und ist in speziellen Fällen sogar der Computertomographie überlegen. Die Sonographie ist ein wertvolles Bindeglied zwischen röntgenologischer Basisdiagnostik und aufwendigeren Schnittbildverfahren. Am Thorax wird das diagnostische Potential der Sonographie derzeit noch ungenügend ausgeschöpft.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001170050366
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Size-dependent light emission from mass-selected clusters (1998)
    Springer
    The European physical journal 2 (1998), S. 79-82 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 32.50.+d Fluorescence, phosphorescence (including quenching)[:AND:] 36.40.-c Atomic and molecular clusters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: The emission of photons in the visible wavelength range from mass-selected Ag+ n, Cu+ n, Pt+ n and Pd+ n ( ) clusters is observed. Photons are detected 10-4 s after the cluster generation in a sputter source. The emission intensities display distinct variations with cluster size and material. The observations are interpreted in terms of the decay of metastable states which are excited during the high-energy sputtering process used for the generation of these clusters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530050114
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    Paper (German National Licenses)
    Fulltext
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