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  • 1995-1999  (2)
  • PACS. 42.50.Gy Effects of atomic coherence on propagation, absorption and amplification of light - 42.50.-p Quantum optics  (1)
  • PACS: 07.65.Gj  (1)
  • Inelastic scattering of atoms and molecules
Source
Material
Years
Year
Keywords
  • PACS. 42.50.Gy Effects of atomic coherence on propagation, absorption and amplification of light - 42.50.-p Quantum optics  (1)
  • PACS: 07.65.Gj  (1)
  • Inelastic scattering of atoms and molecules
  • 33.70.Jg  (2)
  • 07.65.Gj  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Diode laser spectroscopy of overtone bands of acetylene (1996)
    Springer
    Applied physics 63 (1996), S. 277-282 
    Details
    ISSN: 1432-0649
    Keywords: PACS: 07.65.Gj ; 33.70.Jg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract.  Overtone absorption lines of acetylene in the regions around 12700 and 11800 cm-1 have been examined by the use of tunable diode lasers in free-running mode. The diode laser emission wavelength was scanned around the gas resonances by simply sweeping its injection current, permitting a direct observation of the absorption line-shapes. Weak overtone absorption lines have been detected by using the wavelength modulation (WM) spectroscopy with 2nd harmonic detection technique and the collisional broadening and shift coefficients have been obtained. The high resolving power and accuracy of the spectrometer permitted a wavenumber error of less than 0.01 cm-1. The correct interpretation of the absorption signals when detecting the second harmonic in the presence of a sloping background is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01833797
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Experimental study of Velocity Changing Collisions on Coherent Population Trapping in sodium (1999)
    Springer
    The European physical journal 6 (1999), S. 127-131 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 42.50.Gy Effects of atomic coherence on propagation, absorption and amplification of light - 42.50.-p Quantum optics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: In this paper a detailed experimental study of Coherent Population Trapping (CPT) effect on sodium induced by a dye-laser operating in a three-mode regime is presented and a detailed analysis of the role of velocity changing collisions is made. These collisions show a very small relaxation effect on the dark resonances which are visible even at high pressures. For the first time we demonstrate the persistence of the ground state coherence to pressures up to one atmosphere for a relatively “heavy” buffer gas like argon. The experimental results have been compared with theory and a very good agreement has been obtained. Preliminary results on the effect of Na-N2 collisions on Coherent Population Trapping are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530050292
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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