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  • 1
    Electronic Resource
    Electronic Resource
    Study in Terpene Series. XI.1 The Dehydroxymethylation of Bicyclic Primary Terpenic Alcohols by Hydrogenolysis in the Presence of Nickel Catalysts2 (1951)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 73 (1951), S. 4098-4101 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01153a014
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Studies in the Terpene Series. XV. Cycloisomerization of α- and β-Pinene, α-Terpineol, and 1,8-Terpin Hydrate (1952)
    s.l. : American Chemical Society
    The @journal of organic chemistry 17 (1952), S. 1431-1436 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo50011a002
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesis of 1,3-Di-t-butylbenzene and 1,3-Di-t-butylcyclohexane1 (1949)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 71 (1949), S. 3798-3799 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01179a062
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  • 4
    Electronic Resource
    Electronic Resource
    Energy transfer between electromagnetic modes near the isotropic point in CdS
    Amsterdam : Elsevier
    Journal of Crystal Growth 101 (1990), S. 379-384 
    Details
    ISSN: 0022-0248
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-0248(90)91001-7
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  • 5
    Electronic Resource
    Electronic Resource
    Chemical reaction model for coexistence of three phases (1974)
    Springer
    The European physical journal 270 (1974), S. 25-30 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A chemical reaction model is discussed whose steady states show the phenomenon of non equilibrium phase transition of first order. If diffusion occurs, coexistence of two or three phases in different domains is possible. Phase diagram with two or three critical points and a triple point is obtained. For plane boundary layers between the domains the coexisting states are found by a construction analogous to the Maxwellian construction of vapor pressure of a Van der Waals gas. For spherical domains the coexistence dates change with radius analogously as vapor pressure of droplets or bubbles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01676789
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  • 6
    Electronic Resource
    Electronic Resource
    Polaritons in anisotropic semiconductors (1995)
    Springer
    The European physical journal 98 (1995), S. 39-47 
    Details
    ISSN: 1434-6036
    Keywords: 78.66.-w ; 71.35.+z ; 71.36.+c
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We show how to compute the optical properties (reflection and absorption) of anisotropic semiconductors in the exciton energy region, taking into account polariton and electron-hole coherence effects. The method is applied to a GaAs/Ga1−x Al x As superlattice, and the modifications in the optical properties with respect to GaAs are related to the anisotropy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01318277
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  • 7
    Electronic Resource
    Electronic Resource
    Electro-optical properties of excitons in polydiacetylene chains (1999)
    Springer
    The European physical journal 10 (1999), S. 681-686 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 78.66.-w Optical properties of specific thin films, surfaces, and low-dimensional structures - 71.35.-y Excitons and related phenomena - 71.36.+c Polaritons (including photon-phonon and photon-magnon interactions)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We show how to compute the optical functions (reflectivity, transmission, and absorption) of polydiacetylene chains diluted in their monomer matrix exposed to a uniform electric field in the chain direction, in the excitonic energy region. Adopting a model electron-hole potential, we derived an analytical expression for the effective chain susceptibility, which gives the optical functions. The resulting absorption shows excitonic peaks below the gap and Franz-Keldysh oscillations above the gap. The method has been applied for a 3BCMU polydiacetylene chain, showing a good agreement with experimental spectra.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100510050900
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  • 8
    Electronic Resource
    Electronic Resource
    Electromagnetically induced transparency in asymmetric double quantum wells (2002)
    Springer
    The European physical journal 27 (2002), S. 89-102 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 78.67.De Quantum wells – 72.10.Di Scattering by phonons, magnons, and other nonlocalized excitations – 42.65.-k Nonlinear optics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We show how to compute nonlinear optical absorption spectra of an Asymmetric Double Quantum Well (ADQW) in the region of intersubband electronic transitions. The method uses the microscopic calculation of the dephasing due to electron-electron and electron-phonon scattering rates and the macroscopic real density matrix approach to compute the electromagnetic fields and susceptibilities. The polarization dephasing and the corrections to the Rabi frequencies due to the electron-electron interaction are also taken into account. For a proper choice of the QW widths and of the driving fields we obtain electromagnetically induced transparency. This transparency has a very narrow linewidth when a single driving field is applied resonant to the transition between the second and the third subband. In the case of two resonant driving fields or of a driving field resonant between the first and third subband we obtain a large transparency enhancement over the entire absorption spectrum. Results are given for GaAs/GaAlAs QWs and experiments are proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e20020133
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  • 9
    Electronic Resource
    Electronic Resource
    Optical properties of Wurtzite-type semiconducting crystals near the isotropic point (1992)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 14 (1992), S. 563-574 
    Details
    ISSN: 0392-6737
    Keywords: Excitons and related phenomena (including electron-hole drops) ; Polaritons (including photon-phonon and photon-magnon interactions) ; Optical properties of bulk materials
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary Using Stahl's coherent wave approach we calculated the linear interband susceptibility near the band gap. The starting point was the «MGM» formula with a smeared-out dipole densityM(r) and the Green's functionG for the effective-mass Hamiltonian with a screened Coulomb potential. The susceptibility so obtained was used for calculating transmission spectra of CdS platelets for energies near the so-called isotropic point lying far below the nearest excitonic resonance. By fitting experimental spectra we determined components of the residual dielectric tensor for polarization of the incident beam perpendicular and parallel to thec-axis, the mixed-mode dipole moment corresponding toB-exciton, and decay radii characterizing transition dipole densities. The established set of parameters determines the dielectric tensor for a quite wide energetic range.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02462343
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  • 10
    Electronic Resource
    Electronic Resource
    Boundary problems for polariton propagation in thin layers and quantum wells (1992)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 14 (1992), S. 1203-1215 
    Details
    ISSN: 0392-6737
    Keywords: Optical properties of thin films, surfaces, and thin-layer structures (including superlattices, heterostructures, and interacalation compounds) ; Excitons and related phenomena (including electron-hole drops) ; Polaritons (including photon-photon and photon-magnon interactions)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary We show how to compute the optical functions (reflection and transmission) of a semiconductor thin slab, in the vicinity of nearly degenerate exciton states. Additional boundary conditions are not required in the coherentwave-function approach and multiple-polariton effects are included since Maxwell equations are satisfied. When the slab thickness is comparable to the exciton Bohr radius, centre of mass quantization results. When the slab thickness is smaller than the Bohr radius, we obtain, quantum well polaritons. Numerical examples appropriate to GaAs are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02456779
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