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  • Optical Modes Separator (Te, Tm) Based On In0.3Ga0.7As/GaAs Heterostructures With Quantum Wells 
    SÎRBU, N.; DOROGAN, A.; VIERU, T.; KAPON, E.; MEREUŢA, A. (Romanian Inventors Forum, 2011)
    The study of luminescence, absorption and reflection spectra of In0.3Ga0.7As/GaAs heterostructures with quantum wells was made for determining fundamental electronic states of polariton excitons in quantum wells. The ...
  • Optical Modulation Spectra of CdP2 Crystals and Ni-CdP2 Schottky Barriers 
    RADAUTSAN, S. I.; SYRBU, N. N.; KIOSEV, V. K. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1974)
    The relative photosensitivity spectra of Ni-CdP2 Schottky barriers have been investigated experimentally; in these spectra a structure consisting of nine maxima has been observed in the intrinsic absorption region. The ...
  • Optical monitoring of solid electrolites formation in quaternary alloys Ag: AsS3-GeS4 and their analysis 
    TSIULYANU, D.; CIOBANU, M.; STRATAN, I. (Institutul de Fizică Aplicată, AŞM, 2018)
    Quaternary solid electrolytes based on Ag photodoped glasses have been fabricated and studied. The process of fabrication consists of: the synthesize of glassy materials followed by their structural and electrical ...
  • Optical Phonons and Chemical Bonding in TlSbS2, TlSbSe2, and Tl3SbS3 Crystals 
    SYRBU, N. N.; KRASOVSKY, V. T.; GRINCHESHEN, I. N. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1993)
    The optical phonons at k = 0 of TlSbS2, TlSbSe2, and Tl3SbS3 have been investigated by infrared reflectivity measurements from 50 to 4000 cm−1 at 300 K. The factor group analysis of vibrational modes of TlSbS2 and Tl3SbS3 ...
  • Optical Phonons and Chemical Bonding in TlSbS2, TlSbSe2, and Tl3SbS3 Crystals 
    STAMOV, I. G.; SYRBU, N. N.; ZALAMAI, V. V. (Elservier, 2014)
    The emission lines of bound and free excitons and their phonon replicas were observed in the luminescence spectra of ZnP2-D48 crystals doped with Mn, Sn, Cd and Sb measured at 10K. The emission lines are described by the ...
  • Optical properties and birefringence of ZnIn2S4 layered crystals 
    STAMOV, I. G.; ZALAMAI, V. V.; SYRBU, N. N.; TIRON, A. V. (Elsevier, 2020)
    Interference spectra of layered ZnIn2S4 crystals were investigated for samples of different thicknesses (7.5–900 μm). Spectral dependences of refractive indices (na and nb) for light waves with different polarizations were ...
  • Optical properties and energetic band structure of Tl3AsS3, Tl3AsSe3 and Tl3SbS3 crystals 
    SYRBU, N. N.; KRASOVSKY, V. T.; GITSU, D. V.; GRINCHESCHEN, I. N. (Elservier, 1995)
    Fundamental absorption edge spectra and reflectivity spectra of TlaAsS3, T13AsSe3 and TlaSbS 3 crystals have been investigated in the range 1-6 eV at 300 and 77 K. Polarization dependences of three excitonic series ground ...
  • Optical Properties and Energy Band Structure of Zn3P2and Cd3P2 Crystals 
    SOBOLEV, V. V.; SYRBU, N. N. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1974)
    Edge absorption, photoconductivity, and reflectivity spectra are investigated of Zn3P2 crystals in the range from 1 to 12.5 eV and reflectivity spectra of Cd3P2 crystals in the range from 1 to 12.5 eV. The Eg value of Zn3P2 ...
  • Optical Properties of Biexcitons in ZnSe/Zn1−xMnxSe Quantum Wells 
    BOBRYSHEVA, A. I.; RUSSU, S. S. (John Wiley & Sons, Inc., 1990)
    It is shown that in ZnSe/(Zn, Mn)Sequantum wells six biexcitonic states can exist. The group-theoretical classification of these states is performed. The probabilities of biexciton two-photon absorption, hyper-Raman ...
  • Optical properties of Cu2ZnGeSe4 
    GUC, M.; BODNAR, I.; DERMENJI, L.; LEVCENKO, S.; ARUSHANOV, E.; SYRBU, N. N. (Institutul de Fizică Aplicată al AŞM, 2012)
    Cu2ZnGeSe4 (CZGSe) is interesting and promising p-type semiconductor materials for optoelectronics applications and solar cells. In this paper we present reflectivity spectra measured at 300 K in the photon energy range ...
  • Optical properties of CuGa3Se 5 single crystals 
    LEVCENKO, S.; SYRBU, N. N.; NATEPROV, A.; ARUSHANOV, E.; MERINO, J. M.; LEÓN, M. (IOP Publishing, 2006)
    Single crystals of CuGa3Se5 have been grown by chemical vapour transport. Optical properties of CuGa3Se5 have been investigated in the temperature range between 10 K and room temperature 300 K. The temperature dependence ...
  • Optical properties of monocrystalline CuIn5Se8 
    LEVCENKO, S.; SYRBU, N. N.; ARUSHANOV, E.; TEZLEVAN, V.; FERNÁNDEZ-RUIZ, R.; MERINO, J. M.; LEÓN, M. (American Institute of Physics, 2006)
    Single crystals of CuIn5Se8 have been grown by chemical vapor transport. The crystals show a deviation from stoichiometry. The temperature dependence of their optical absorption spectra was investigated in the temperature ...
  • Optical properties of significant acousto-optic crystals 
    MUSINSCHI, V.; CARAMAN, M.; MUSINSCHI, C.; SYRBU, N. (Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu" al AŞM, 2009)
    The interest in the study of the optical properties of TeO2 and PbMoO4 crystals is determined not only by the fundamental physical mechanisms present in these materials but also by a wide spectrum of possible applications ...
  • Optical properties of Sm-doped ceria nanostructured films grown by electrodeposition at low temperature 
    URSAKI, V. V.; LAIR, V.; ŻIVKOVIĆ, L.; CASSIR, M.; RINGUEDÉ, A.; LUPAN, O. (ELSEVIER, 2012)
    Nanostructured undoped and samarium doped ceria thin nanocolumnar films are electrodeposited onto (FTO) glass substrates at low-temperature (30°C) with a subsequent thermal annealing at 600°C for 1h. Films are obtained ...
  • Optical properties of Tl3SbS3 acousto-optic crystals 
    SYRBU, N. N.; DOROGAN, V. V.; NEMERENCO, L. L.; VIERU, T. S. (American Institute of Physics, 2006)
    Optical properties of acousto-optical material Tl3SbS3 were investigated at the fundamental absorption edge. The basic (n=1) and excited (n=2, 3) exciton states were obtained from the λ-modulated reflection spectra for ...
  • Optical properties of TlGaSe2 crystals 
    TIRON, A. V. (Universitatea Academiei de Ştiinţe a Moldovei, 2015)
    TIGaSe2 semiconductors crystallize as a layered structure and have monoclinic lattice. One of the features of these crystals is a strong anisotropy of physical characteristics due to the specificity of the crystal structure. ...
  • Optical properties of ZnO nanowire arrays electrodeposited on n- and p-type Si(111): Effects of thermal annealing 
    LUPAN, O.; PAUPORTÉ, Th.; TIGINYANU, I. M.; URSAKI, V. V.; HEINRICH, H.; CHOW, L. (ELSEVIER, 2011)
    Electrodeposition is a low temperature and low cost growth method of high quality nanostructured active materials for optoelectronic devices. We report the electrochemical preparation of ZnO nanorod/nanowire arrays on ...
  • Optical reflectance studies of highly specular anisotropic nanoporous (111) InP membrane 
    STEELE, J. A.; LEWIS, R. A.; SIRBU, L.; ENACHI, M.; TIGINYANU, I. M.; SKURATOV, V. A. (IOP Publishing, 2015)
    High-precision optical angular reflectance measurements are reported for a specular anisotropic nanoporous (111) InP membrane prepared by doping-assisted wet-electrochemical etching. The membrane surface morphology was ...
  • Optical reservoir computing: prospects of using SUB-10 picosecond lasers 
    ALEXANDRU, Burlacu (Tehnica UTM, 2020)
    Training neural networks is hard. The industry is approaching the limits of siliconbased computing, both in terms of transistor size and chip dimensions. There are already examples of technologies that allow computations ...
  • Optical spectra and electroabsorption of CdP2 and CdP4 single crystals 
    RADAUTSAN, S. I.; SYRBU, N. N.; TESLEVAN, V. E.; CHUMAK, I. V. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1973)
    The anisotropy of the absorption and electroabsorption spectra of CdP2 and CdP4, single crystals has been investigated. A number of interband gaps has been determined and specified. The energies and the type of phonons ...

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