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  • Birefringence and Excitonic Spectra of CdGa2S4 Crystals 
    STAMOV, I. G.; SYRBU, N. N.; PARVAN, V. I.; ZALAMAI, V. V. (Technical University of Moldova, 2013)
    The spectral dependence of Δn = no - ne of CdGa2S4 crystals in short- and long- wavelength part of isotropic wavelength λ0 = 485.7 nm (300 К) was determined. It was established what in the case when λ > λ0 Δn is positive ...
  • Birefringence and excitonic spectra of TlGaS2 crystals 
    STAMOV, I. G.; SYRBU, N. N.; URSAKI, V. V.; ZALAMAI, V. V. (ELSEVIER, 1999)
    The anisotropy of transmission spectra was investigated in TlGaS2 crystals. An intensive transmission line was found in samples placed between two crossed polarizers. Ground and excited states of excitons were detected in ...
  • Birefringence and excitonic spectra of TlGaS2 crystals 
    STAMOV, I. G.; SYRBU, N. N.; URSAKI, V. V.; ZALAMAI, V. V. (Elservier, 2013)
    The anisotropy of transmission spectra was investigated in TlGaS2 crystals. An intensive transmission line was found in samples placed between two crossed polarizers. Ground and excited states of excitons were detected in ...
  • Birefringence in Anisotropic Crystals CuGa(Al)S2 and Based on Them Optical Filters 
    NEMERENCO, Lucretia; MASNIC, Alisa; MIROVSCHII, Vladimir; IVANENCO, Iurii (Technical University of Moldova, 2013)
    In uniaxial birefringence crystals are observed two refractive index of refraction (no and ne) with its dispersion curves, that can intersect for a given wavelength. Phenomenon of intersect the dispersion curves no and ne ...
  • Birefringence in CdGa2S4 Crystals 
    TIRON, A. V.; PARVAN, V. I.; SYRBU, N. N.; ZALAMAI, V. V. (Technical University of Moldova, 2015)
    In СdGа2S4 crystals Fabry-Perot and birefringence interference spectra were investigated. Spectral dependences of refraction indexes for ordinary and extraordinary light waves are defined. The spectral dependence Δn = ne ...
  • Birefringence in In0 .3Ga0 .7As/GaAs Quantum Layers 
    SYRBU, N.; DOROGAN, A.; DOROGAN, V.; TIRON, A.; ZALAMAI, V. (American Scientific Publishers, 2015)
    Reflection, wavelength modulated reflection and transmission spectra at P, P (S, S) and 45°, 45° (135°, 135°) polarizations for incidence angles close to normal and Brewster one were researched in quantum In0.3Ga0.7As ...
  • Birefringence in PbGa2S4 AND CdGa2S4 crystals 
    NEMERENCO, L.; PARVAN, V.; SYRBU, N.; MASNIC, A. (Institutul de Fizică Aplicată al AŞM, 2012)
    Cadmium thiogallate CdGa2S4 has a coefficient of nonlinear susceptibility is five times greater than the coefficient of nonlinear susceptibility of niobate lithium . The dispersion of birefringence in CdGa2S4 and PbGa2S4 ...
  • Birefringence in Quantum Wells 
    DOROGAN, A.; DOROGAN, V.; SYRBU, N.; ZALAMAI, V. (Technical University of Moldova, 2015)
    Polarization dependences of reflection and wavelength modulated reflection spectra of quantum wells In0.68Al0.1Ga0.13As/ In0.42Al0.22Ga0.24As were investigated. Spectral dependences of refractive indices, extinction ...
  • Birefringence in quantum wells of heterostructures In0.68Al0.1Ga0.13As/In0.42Al0.22Ga0.24As/InP 
    SYRBU, N.; DOROGAN, A.; DOROGAN, V.; ZALAMAI, V. (Elservier, 2015)
    The polarization dependences of reflection and wavelength modulated reflection spectra of quantum wells In0.68Al0.1Ga0.13As/In0.42Al0.22Ga0.24As were investigated. Spectral dependences of refractive indices, extinction ...
  • Birefringence in ZnIn2S4 layered crystals 
    ZALAMAI, V. V.; TIRON, A. V.; RUSU, E. V.; SYRBU, N. N. (Tehnica UTM, 2018)
    Interference spectra of ZnIn2S4 crystals by 7.5 - 900 μm thicknesses were investigated. Spectral dependences of refractive indices (no and ne) were calculated and they intersection was observed at energy E0 ~ 2.8 eV. The ...
  • Birefringence in ZnP2-D4 
    STAMOV, I. G.; ZALAMAI, V. V.; NEMERENCO, L.; SYRBU, N. N. (Technical University of Moldova, 2015)
    Spatial dispersion in ZnP2-D48 has been studied. The spectral dependences of the refractive index nс (Е||с, k||a), nа (Е||а, k||с) and nb (E||b, k||c) had been determined. ZnP2-D4 8 crystals are isotropic at λо=612nm ...
  • Birefringence of Cu2ZnSiSe4 single crystals 
    SYRBU, N. N.; ZALAMAI, V.; GUC, M.; LEVCENKO, S.; DOROGAN, A.; ARUSHANOV, E. (Elservier, 2015)
    In Cu2ZnSiSe4 single crystals an interference spectra of the Fabry–Perot type due to observed birefringence were studied and spectral dependence of the refractive index n|| (E||c) and n⊥ (E⊥c), which intersect at isotropic ...
  • Birefringence of CuGa2S4 crystals 
    SYRBU, N.; DOROGAN, A.; URSAKI, V.; STAMOV, I.; TIGINYANU, I. M. (The Electrochemical Society, 2011)
    Investigation of the spectral characteristics as a function of the crystal thickness demonstrates that one can create filters using thin crystals for selecting several spectral lines. The wavelength of these lines is ...
  • Birefringence of CuGaxAl1-xSe2 crystals 
    SYRBU, N. N.; DOROGAN, A. V.; MASNIK, A.; URSAKI, V. V. (IOP Publishing, 2011)
    Excitonic reflection spectra of CuAlSe2 crystals were studied at 10 K. The spectral dependences of refractive indices no and ne were calculated. The isotropic wavelength (the point of intersection of no and ne) in the ...
  • Birefringence of SnSe single crystals in excitonic and electronic transitions region 
    ZALAMAI, V. V.; TIRON, A. V.; RUSU, E. V.; SYRBU, N. N. (IOP Publishing, 2019)
    Absorption spectra in temperature range 300–10 K were studied. The minimal band gap A1 (1.091 eV at 300 K) is formed by direct allowed in E∣∣c polarization and forbidden in E∣∣a polarizations transitions. The next interval ...
  • Birefringence of ZnP2-D48 and Characteristics of Ме-ZnP2 Diodes 
    STAMOV, I. G.; SYRBU, N. N.; NEMERENCO, L.; ZALAMAI, V. (Open Science Publishers, 2015)
    Spatial dispersion in ZnP2-D4 8 has been studied. The spectral dependences of the refractive index nс (Е||с, k||a), nа (Е||а, k||с) and nb (E||b, k||c) had been determined. ZnP2-D4 8 crystals are isotropic at λо=612nm ...
  • Birefringence, isotropic points, and optical filters based on CuAl/sub x/Ga/sub 1- x/Se(S)/sub 2/ crystals 
    MAȘNIC, Alisa; URSAKI, Veaceslav (Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu", 2021)
    A brief review on birefringence and optical filters based on CuAl/sub x/Ga/sub 1- x/Se(S)/sub 2/ crystals is given in this paper. Two types of isotropic points are analyzed; one of them refers to a case when the wavelength ...
  • Birefringența și structura benzilor energetice ale materialelor calcopirite CuAl/sub x/Ga/sub 1- x/Se(S)/sub 2/ 
    MAȘNIC, Alisa (Universitatea Tehnică a Moldovei, 2023)
    Scopul lucrării: Identificarea structurii benzilor energetice şi tranziţiilor electronice în centrul zonei Brillouin şi în alte puncte de simetrie înaltă ale zonei Brillouin în cristale de CuAlxGa1-xSe(S)2, inclusiv ...
  • Birocrația de urgență: pregătirea autorităților pentru noile provocări 
    PRODAN-ŞESTACOVA, Liubovi (Academia de Administrare Publică, Republica Moldova, 2021)
    The activity of public authorities in the western space during the last two centuries had the characteristics of a classic bureaucracy. A number of principles of this model of organization of administrative structures gave ...
  • Biscuits with seeds and rye flour 
    BUCULEI, Amelia; CONSTANTINESCU (POP), Cristina Gabriela (Tehnica UTM, 2018)
    The biscuit market was one of the most dynamic markets due mainly to the desire to innovate and market new producers. In terms of nutritional value, these biscuits are net superior to other types of biscuits made from wheat ...

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