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  • 1
    Electronic Resource
    Electronic Resource
    Self-diffraction of CO2-laser radiation in SF6 (1986)
    Springer
    Optical and quantum electronics 18 (1986), S. 115-121 
    Details
    ISSN: 1572-817X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Self-diffraction of CO2-laser radiation (λ=10.51 μm) has been observed in gaseous SF6. Different orders of self-diffraction have been studied, up to the third. The amplification due to degenerate resonant multiphoton parametric processes has been measured to be as large as eight. The experimental estimates have been derived for the effective nonlinear susceptibilities (coefficients of nonlinear interaction) of the third, fifth, and seventh orders. The self-diffraction may essentially affect nonlinear processes including optical phase conjugation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02032118
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  • 2
    Electronic Resource
    Electronic Resource
    Phase conjugation of CO2-laser radiation by a three-beam interaction (1987)
    Springer
    Optical and quantum electronics 19 (1987), S. 259-264 
    Details
    ISSN: 1572-817X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract The distortion correction of a CO2-laser radiation wavefront is studied by using forward resonant parametric scattering in gaseous SF6 and retrace after retroreflection from a mirror.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02032521
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  • 3
    Electronic Resource
    Electronic Resource
    Unidirectional Doppler-free gain and generation in optically pumped lasers (1982)
    Springer
    Applied physics 27 (1982), S. 63-67 
    Details
    ISSN: 1432-0649
    Keywords: 42.65-k ; 32.10 Vc ; 42.80 Qy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The feasibility of obtaining anisotropic Doppler-free gain and unidirectional generation in optically pumped lasers is studied. The Doppler broadening is compensated due to a pump-induced velocity-dependent light shift of an atomic transition. The gain and spectral characteristics are investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00697298
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  • 4
    Electronic Resource
    Electronic Resource
    Drift of gases induced by nonmonochromatic light (1981)
    Springer
    Applied physics 25 (1981), S. 347-350 
    Details
    ISSN: 1432-0630
    Keywords: 42.65-k ; 32.10 Vc ; 42.80 Qy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The phenomenon of light-induced drift of gases influenced by a nonmonochromatic light with different spectral properties is under consideration. The dependence of the drift velocity on the spectrum shape, bandwidth, detunings and light intensity is studied. The largest drift velocity is found to be obtained at the bandwidth of the spectrum being of the order of the Doppler atomic transition width, and when the wings of the spectrum drop rapidly. It is shown that nonmonochromatic light of the same intensity as a monochromatic one allows to reach a much larger drift velocity. Principal possibilities to obtain supersonic light-induced drift velocities are shown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00902993
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  • 5
    Electronic Resource
    Electronic Resource
    Doppler-free spectroscopy and wave-front conjugation by four-wave mixing of nonmonochromatic waves (1980)
    Springer
    Applied physics 21 (1980), S. 93-94 
    Details
    ISSN: 1432-0630
    Keywords: 42.65-k ; 32.10 Vc ; 42.80 Qy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A new technique to determine the natural and collision width of Doppler-broadened two-photon transitions is shown. The method consists of using the pump with the spectral width considerably exceeding the Doppler one of the transition. Feasibility of effective wave front conjugation is shown for the case of radiation with a large spectral width.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00886488
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  • 6
    Electronic Resource
    Electronic Resource
    Fractals: optical susceptibility and giant raman scattering (1988)
    Springer
    The European physical journal 10 (1988), S. 71-79 
    Details
    ISSN: 1434-6079
    Keywords: 64.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A theory is developed which describes the optical properties of fractal clusters (i.e. of aggregates of non-trivial Hausdorff dimension consisting of interacting monomer particles). It is shown that with respect to these properties fractal clusters differ significantly from both gases and condensed media. The interaction between the monomers is assumed to be dipole-dipole. The theory is based on the self-consistent field equations; it takes into account the fluctuation nature of the fractal cluster (considerable probability for approach of monomers to each other despite an asymptotically zero integral density). An expression is obtained for the linear susceptibility. Combination of the monomers with the formation of a cluster entails the splitting, shift and broadening of the monomer spectra. These changes depend strongly on the fractal (Hausdorff) dimension of the cluster but do not depend on the number of monomers in it (for a cluster of non-trivial dimension). On the other hand, the monomers partially retain their individuality and the susceptibility — its quasi-resonance nature. Broadening, like the imaginary part of the susceptibility, does not depend on dissipation in an individual monomer. It is predicted that giant Raman scattering may occur at an impurity particle fixed near one of the cluster monomers when excitation takes place in the absorption band of the cluster. The enhancement factor for the scattering is also determined by the fractal dimension.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01425582
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  • 7
    Electronic Resource
    Electronic Resource
    Fractals: giant impurity nonlinearities in optics of fractal clusters (1988)
    Springer
    The European physical journal 10 (1988), S. 81-92 
    Details
    ISSN: 1434-6079
    Keywords: 68.35.Bs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A theory of nonlinear optical properties of fractals is developed. Giant enhancement of optical susceptibilities is predicted for impurities bound to a fractal. This enhancement occurs if the exciting radiation frequency lies within the absorption band of the fractal. The giant optical nonlinearities are due to existence of high local electric fields in the sites of impurity locations. Such fields are due to the inhomogeneously broadened character of a fractal spectrum, i.e. partial conservation of individuality of fractal-forming particles (monomers). The field enhancement is proportional to theQ-factor of the resonance of a monomer. The effects of coherent anti-Stokes Raman scattering (CARS) and phase conjugation (PC) of light waves are enhanced to a much greater degree than generation of higher harmonics. In a general case the susceptibility of a higher-order is enhanced in the maximum way if the process includes “substraction” of photons (at least one of the strong field frequencies enters the susceptibility with the minus sign). Alternatively, enhancement for the highest-order harmonic generation (when all the photons are “accumulated”) is minimal. The predicted phenomena bear information on spectral properties of both impurity molecules and a fractal. In particular, in the CARS spectra a narrow (with the natural width) resonant structure, which is proper to an isolated monomer of a fractal, is predicted to be observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01425583
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  • 8
    Electronic Resource
    Electronic Resource
    Nonlinear optics of metal fractal clusters (1990)
    Springer
    The European physical journal 17 (1990), S. 283-289 
    Details
    ISSN: 1434-6079
    Keywords: 68.35.Bs ; 64.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Linear and nonlinear optical properties of metal fractal clusters are studied. Experimental evidence is presented proving that clusters possess unique optical nonlinearities, characterized by rapid response, broadbandness and enormously high values of nonlinear susceptibility. A 106 times enhancement of the DFWM signal has been observed experimentally in silver particles aggregated into clusters. For the first time frequency-and polarization-selective photomodification of fractal silver clusters has been realized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01437368
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  • 9
    Electronic Resource
    Electronic Resource
    On two-photon excited gas drift under a train of ultrashort laser pulses (1988)
    Springer
    The European physical journal 8 (1988), S. 367-369 
    Details
    ISSN: 1434-6079
    Keywords: 42.65.-k ; 32.10.Vc ; 42.80.Qy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A theoretical analysis has been carried out of the light-induced drift (LID) of gases which is two-photon-excited by a mode-locked laser radiation. The mode-locking is shown to ensure a 102–103 times increase of the LID-effect estimated under typical experimental conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01437103
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  • 10
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    Demonstration of Al:ZnO as a plasmonic component for near-infrared metamaterials (2012)
    National Academy of Sciences
    Details
    Publication Date: 2012-05-18
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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