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  • 1990-1994  (2)
  • 51.70  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Efficiently generated rotational and vibrational stimulated raman emission by means of a two-color laser beam (1991)
    Springer
    Applied physics 52 (1991), S. 211-216 
    Details
    ISSN: 1432-0649
    Keywords: 42.65 ; 51.70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract When a two-color laser beam is introduced into pressurized hydrogen, about 40 laser emission lines are generated from the ultraviolet to the visible regions. This phenomenon is ascribed to the stimulated Raman effect due to a combination ofJ=1 →J=3 rotational andv=0 →v=1 vibrational transitions. By introducing the two-color laser beam, the threshold for generation of the rotational line is substantially reduced. The present phenomenon is attributed to four-wave mixing, which allows efficient generation of higher-order rotational and vibrational Raman lines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00750953
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Generation of multi-color stimulated raman emission from two-color linearly or circularly polarized pump beams (1993)
    Springer
    Applied physics 56 (1993), S. 259-262 
    Details
    ISSN: 1432-0649
    Keywords: 42.65 ; 51.70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A laser beam at two different frequencies separated by 587 cm−1 is focused into pressurized hydrogen (rotational transition energy, 587 cm−1) to generate multi-color stimulated Raman emission. The polarization state and the pulse energy are measured for each generated emission line using linearly and circularly polarized pump beams. The effect of the polarization is discussed by using a parameter characterizing the polarizability of hydrogen and a conservation rule for the angular momentum in four-wave mixing. Many rotational lines are generated with linearly polarized pump beams through a four-wave mixing process. This is in striking contrast to the results obtained by using a single-color circularly polarized pump beam which generates only one rotational line through a conventional stimulated Raman process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00325213
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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