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  • 1
    Electronic Resource
    Electronic Resource
    Generation of short-pulse VUV and XUV radiation (1996)
    Springer
    Optical and quantum electronics 28 (1996), S. 267-281 
    Details
    ISSN: 1572-817X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Starting from intense short-pulse KrF (248 nm, 25 mJ, 400 fs), ArF (193 nm, 10 mJ, ∼1 ps), and Ti:sapphire (810 nm, 100 mJ, 150 fs) laser systems, schemes for the generation of fixed-frequency and tunable VUV and XUV radiation by nonlinear optical techniques are investigated. With the KrF system, a four-wave mixing process in xenon yields tunable radiation in the range of 130–200 nm with output energies of, so far, 100 μJ in less than 1 ps. For the XUV spectral range below 100 nm, nonperturbative high-order harmonic generation and frequency mixing processes in noble gas jets are considered. To achieve tunability, the intense fixed-frequency pump laser radiation is mixed with less intense but broadly tunable radiation from short-pulse dye lasers or optical parametric generator-amplifier systems. In this way, tunability down to wavelengths of less than 40 nm has been demonstrated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00385858
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Short-pulse high-intensity excimer lasers – A powerful tool for the generation of coherent VUV and XUV radiation (1996)
    Springer
    Applied physics 63 (1996), S. 451-461 
    Details
    ISSN: 1432-0649
    Keywords: PACS: 42.65.Ky; 52.40.Db
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract.  Different approaches for the generation of coherent VUV and XUV radiation with a 400 fs KrF excimer-laser system are studied. In nonlinear optical experiments it is shown that four-wave difference-frequency mixing in Xe, using a near two-photon resonance with the KrF laser radiation, is well suited for the generation of tunable VUV radiation in the range 130–200 nm. Conversion efficiencies of 2% and output energies up to 260 μJ have been demonstrated. Further prospects to achieve mJ energies are discussed. Using this VUV source and the KrF laser, powerful XUV radiation can be generated by different low-order frequency mixing processes. In first experiments on this subject, direct frequency tripling of the KrF laser pulse has resulted in 14 μJ XUV radiation at 83 nm. For the realization of soft-X-ray lasers, specific advantages of short-pulse KrF drivers are discussed. Novel scenarios based on a hybrid KrF/Ti:sapphire laser system and multiphoton resonant excitation are considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01828940
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Short-pulse high-intensity excimer lasers — A powerful tool for the generation of coherent VUV and XUV radiation (1996)
    Springer
    Applied physics 63 (1996), S. 451-461 
    Details
    ISSN: 1432-0649
    Keywords: 42.65.Ky ; 52.40.Db
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Different approaches for the generation of coherent VUV and XUV radiation with a 400 fs KrF excimer-laser system are studied. In nonlinear optical experiments it is shown that four-wave difference-frequency mixing in Xe, using a near two-photon resonance with the KrF laser radiation, is well suited for the generation of tunable VUV radiation in the range 130–200 nm. Conversion efficiencies of 2% and output energies up to 260 μJ have been demonstrated. Further prospects to achieve μJ energies are discussed. Using this VUV source and the KrF laser, powerful XUV radiation can be generated by different low-order frequency mixing processes. In first experiments on this subject, direct frequency tripling of the KrF laser pulse has resulted in 14 μJ XUV radiation at 83 nm. For the realization of soft-X-ray lasers, specific advantages of short-pulse KrF drivers are discussed. Novel scenarios based on a hybrid KrF/Ti: sapphire laser system and multiphoton resonant excitation are considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01828940
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Continuous frequency up-conversion in a double-Λ scheme of Na2 (1997)
    Springer
    Applied physics 64 (1997), S. 435-442 
    Details
    ISSN: 1432-0649
    Keywords: PACS: 13; 42.50; 42.65
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract.  In a double-Λ level configuration of Na2 molecules, involving rotational–vibrational levels of the X, A and B bands, continuous resonant frequency mixing ω4=ω1−ω2+ω3 is demonstrated. A DCM dye laser at 661 nm (λ1) pumps a molecular Raman laser at 746 nm (λ2) in a sodium heatpipe, which is used to generate the molecular vapour. In the same heatpipe, both fields are mixed with the radiation of an argon-ion laser at 514 nm (λ3) to generate up-converted laser radiation at 473 nm (λ4). For laser powers of 200 mW (λ1), 700 mW (λ2, internal power) and 140 mW (λ3), an output power of 120 μW (λ4) has been achieved. Dependences of the generated radiation on the pump fields (powers and detunings) and polarization features are presented; influences of coherent coupling and population transfer mechanisms are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003400050196
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Quantum interference and Manley-Rowe relations in resonant four-wave frequency mixing in an optically thick Doppler-broadened medium (1999)
    Springer
    JETP letters 69 (1999), S. 912-916 
    Details
    ISSN: 1090-6487
    Keywords: 42.65.Hw ; 42.50.−p
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is shown that under resonant interaction conditions certain notions in nonlinear optics which are based on the Manley-Rowe relations no longer hold because of the interference of elementary quantum-mechanical processes. This conclusion is illustrated by numerical examples corresponding to the experiments performed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.568111
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    Paper (German National Licenses)
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