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  • PLASMA PHYSICS  (1)
  • non-linear absorption  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Nonlinear effects in chromophore doped sol-gel photonic materials (1997)
    Springer
    Journal of sol gel science and technology 9 (1997), S. 169-181 
    Details
    ISSN: 1573-4846
    Keywords: aluminosilicate gel ; non-linear absorption ; metalloporphyrin ; spirooxazine ; time-resolved spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Linear and nonlinear optical effects have been studied in chromophore-doped gel hosts. Tetra-4-sulfonatophenylporphyrinatocopper(II) (CuTPPS), and 1,3-dihydro-1,3,3-trimethylspiro[2H-indole-2,3′-[3H]-naphth[2,1-b][1,4]oxazine] (SP spirooxazine) species were entrapped within porous aluminosilicate hosts. Optical limiting effects and radiative up-conversion behavior in the CuTPPS-doped materials are described, and a six-level model is proposed based on experimental findings. Spirooxazine-containing specimens exhibiting photochromic effects were prepared, and cw and time-resolved spectroscopy methods are used to assess excited state band structures and the nature of guest-host interactions in the resultant gels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02439397
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    Paper (German National Licenses)
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  • 2
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    Unknown
    Fast magnetization of a high-to-low-beta plasma beam (1990)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: The magnetization of a high-beta (plasma energy density/magnetic-field energy density) hydrogen-plasma beam injected into a vacuum transverse magnetic field is studied experimentally. Nominal parameters were Ti = 1 eV, Te = 5 eV, n = 3 x 10 to the 13th/cu cm or less, v(i) = 7 x 10 to the 6th cm/sec or less, t(pulse) less than 70 microsec, and Bz = 300 G or less. Plasma characteristics were measured for a wide beam and a downstream distance, x = 300 rho(i) or less, where x is the downstream distance and rho(i) is the ion gyroradius. A brief initial state of diamagnetic propagation is observed, followed by magnetized propagation accompanied by beam compression transverse to B with as much as a factor of 4 increase in density and a slight drift of the beam in the ion Lorentz force direction.
    Keywords: PLASMA PHYSICS
    Type: Physics of Fluids B (ISSN 0899-8221); 2; 2482-248
    Format: text
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    NASA TECHNICAL REPORTS
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