Browsing by Subject "scattering"

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  • Anomalous retroreflection from strongly absorbing nanoporous semiconductors 
    PRISLOPSKI, S. Ya.; NAUMENKO, E. K.; TIGINYANU, I. M.; GHIMPU, L.; MONAICO, E.; SIRBU, L.; GAPONENKO, S. V. (Optical Society of America, 2011)
    Pronounced retroreflection behavior is reported for a fishnet nanoporous strongly absorbing semiconductor material. Retroreflection features a half-cone about 0.35 rad along with diffusive specular reflection for all angles ...
  • Bound exciton in CuGaS2 
    SYRBU, N. N.; NEMERENCO, L. L.; BEJAN, V. N.; TEZLEVAN, V. E. (Elservier, 2007)
    In CuGaS2 crystals absorption and luminescence spectra at the temperature 9K at excitation by different wavelengths of Ar laser are investigated. A series of lines available in luminescence and absorption spectra is found. ...
  • Fresnel lens-type energy concentrator for space-based solar power systems 
    SERGENTU, Vladimir; URSAKI, Veacheslav; IOIŞER, Anatolii; ADAR, Eliezer (Romanian Academy Publishing House, 2018)
    In this paper a new concept of designing Fresnel lens concentrators on the basis of magnetic microwires with a complex spatial distribution of their density is proposed. The optical properties of microwires are analyzed ...
  • Infrared lattice vibration spectra of monoclinic ZnP2 
    SOBOTTA, H.; NEUMANN, H.; SYRBU, N. N.; RIEDE, V. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1983)
    The lattice vibrational properties of ZnP2 which is known to crystallize in a monoclinic and tetragonal modification with space groups P21/c and one of the enantiomorphs P41212 or P43212 respectively /1/, have been studied ...
  • Infrared lattice vibration spectra of tetragonal ZnP2 
    SOBOTTA, H.; NEUMANN, H.; RIEDE, V.; SYRBU, N. N. (Elservier, 1983)
    Infrared reflectivity spectra of tetragonal ZnP2 are measured in the frequency range from 40 to 600 cm-1 for both polarization directions E ⊥ c and E ‖ c. The parameters of 9 E modes and 4 A2 modes are determined by a ...
  • Multiple-phonon resonant Raman scattering in CuGaxIn1−xS2 single crystals 
    SYRBU, N. N.; NEMERENCO, L. L.; DOROGAN, A. V.; TEZLEVAN, V. E.; ARAMA, E. (Elservier, 2009)
    In this work it is researched the Raman scattering spectra of CuGaхIn1−xS2 solid compounds for x=1.0,0.9 and 0.8 at 10–60K. LO-phonons, 2LO-phonons etc can be observed while going far from the excitation energy (6 phonons ...
  • Nanostructured Al-doped zinc oxide films by rapid photothermal processing for solar cells applications 
    SISIANU, Teodor; SISIANU, Sergiu; SONTEA, Victor; POCAZNOI, Ion; LUPAN, Oleg; CHOW, Lee; KHALLAF, Hani; MONAICO, Eduard; RAILEAN, Serghei (Technical University of Moldova, 2007)
    Nanostructured ZnO thin films have been deposited on Si substrates using a novel chemical solution deposition method. The structure, morphology, and electrical properties of the films were studied for different concentrations ...
  • Neutron reflectometry studies of Gd/Nb and Cu30Ni70/Nb superlattices 
    KHAYDUKOV, Y.; KRAVTSOV, E.; MORARI, R.; LENK, D.; MUSTAFA, L.; KIM, G.; TRAPP, M.; ZHAKETOV, V.; PROGLYADO, V.; ZRDAVKOV, V.; NIKITENKO, Y.; NIDDA Von, H.-A. Krug; KELLER, T.; STEITZ, R.; TIDEKS, R.; SIDORENKO, A.; USTINOV, V.; AKSENOV, V.; KEIMER, B. (IOP Publishing, 2019)
    We performed a comparative study of magnetic proximity effects in [Gd(5nm)/Nb(25nm)]12 and [Cu30Ni70(6nm)/Nb(27nm)]12 superlattices of S/F type by means of transport measurements and neutron scattering. Transport measurements ...
  • Ni2+–Fe3+ cyanometallate structures covalently embedded in silica: Influence of the blocking ligand at Ni2+ 
    FELBERMAIR, Elisabeth; AKBARZADEH, Johanna; PETERLIK, Herwig; SIDORENKO, Andrey; PASCHEN, Silke; SCHUBERT, Ulrich (Elservier, 2019)
    Ni(II)/Fe(III) cyanometallate structures with Si(OR)3-substituted bis(2-aminoethyl)-1,3-propanediamine or 1,4,8,11-tetraazacyclotetradecane (cyclam) blocking ligands at Ni(II) were prepared and embedded in SiO2 by means ...
  • Photoluminescence and resonant Raman scattering in highly conductive ZnO layers 
    ZALAMAI, V. V.; URSAKI, V. V.; RUSU, E. V.; ARABADJI, P.; TIGINYANU, I. M.; SIRBU, L. (American Institute of Physics, 2004)
    Photoluminescence (PL) and resonant Raman scattering (RRS) excited by the 351.1nm line of an Ar+ laser were studied in highly conductive ZnO layers deposited by thermal decomposition of Zn(C5H7O2)2 metalorganic compound ...
  • Raman scattering in right angle configuration on Cu2ZnSiSe4 single crystals 
    GUC, M.; LEVCENKO, S.; ZALAMAI, V.; ARUSHANOV, E.; SYRBU, N. N. (Elservier, 2017)
    Polarized Raman scattering and resonance Raman scattering spectra of Cu2ZnSiSe4 crystals measured at temperature 300 and 10 K were investigated. Nine vibrational modes of A2 symmetry, seven modes of B2 symmetry and nine ...
  • Rapid thermal annealing induced change of the mechanism of multiphonon resonant Raman scattering from ZnO nanorods 
    URSAKI, V. V.; LUPAN, O. I.; CHOW, L.; TIGINYANU, I. M.; ZALAMAI, V. V. (ELSEVIER, 2007)
    Multiphonon Resonant Raman scattering (RRS) excited by 351.1 and 363.8 nm lines of an Ar+ laser was studied at temperatures from 10 to 300 K in as-grown and rapid thermal annealed (RTA) aluminum doped ZnO nanorods synthesized ...
  • Scattering of a two-dimensional self-healing beam at the interface of a nanostructured medium with the vacuum 
    SERGENTU, Vladimir; URSAKI, Veacheslav (Romanian Academy Publishing House, 2018)
    In this paper the Fresnel’s formula are generalized to the case of a twodimensional (2D) self-healing beam incident on the interface of the vacuum with a nonmagnetic, homogeneous on average and isotropic nanostructured ...
  • Vibrational modes in ZnAl2S4 and CdIn2S4 crystals 
    SYRBU, N. N.; BOGDANASH, M.; MOLDOVYAN, N. A. (Elservier, 1996)
    Infrared reflectivity spectra and Raman scattering of the ZnAl2S4 and CdIn2S4 crystals have been investigated. Reflectivity spectra contours were calculated and phonon parameters and dielectric constants were determined. ...
  • Violation of the Wiedemann-Franz law in quasi-one-dimensional organic crystals 
    CASIAN, Anatolie (American Physical Society, 2010)
    The charge and energy transport in some highly conducting quasi-one-dimensional organic crystals is studied. Two electron-phonon interactions and scattering on impurity are considered. It is found that the Wiedemann-Franz ...

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