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  • 1995-1999  (1)
  • 1940-1944  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Solvent effects on first-order molecular hyperpolarizability: A study based on vibrational observables (1995)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 103 (1995), S. 9935-9940 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Using a recently developed method, we show here that solvent effects on the first molecular hyperpolarizabilities of push-pull polyenes can be predicted by evaluation of the relaxation contribution βr to the hyperpolarizability from vibrational infrared and Raman intensities and vibrational frequencies. The molecules studied in this work are a few organic polymethine dyes with different donor and acceptor groups. The analysis of their vibrational spectra confirms the key role played by the structural parameters of the polyene chain in determining the nonlinear optical response. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.469882
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Colour Measurement (1941)
    [s.l.] : Nature Publishing Group
    Nature 148 (1941), S. 691-692 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] As was recently noted in NATURE1, an increasingly high degree of accuracy in the specification of colour in terms of C.I.E. units is now being sought as a result of the growing realization of the indefiniteness of the colour discrimination limen and the low values it can assume ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/148691a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Colour Measurement (1942)
    [s.l.] : Nature Publishing Group
    Nature 149 (1942), S. 553-553 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MR. GUILD& apos;S letter1 makes it clear that the recent conflict in views on colour measurement arises by his adopting an interpretation of the role of the C.I.E. colorimetric system which puts it outside purely physical discussion. The explanation he suggests does not, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/149553a0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Colour Measurement (1942)
    [s.l.] : Nature Publishing Group
    Nature 149 (1942), S. 247-248 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Messrs. Smith, Guild and Donaldson's fears1 of misconceptions were not at all justified. My letter2 directed attention to certain general aspects of the physics of colour measurement. Emphasis was upon the need for knowledge in order to provide, for the concretest ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/149247a0
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    Paper (German National Licenses)
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