Articole din publicaţii internaţionale: Recent submissions

  • The study of some luminescent materials on the basis of organic copolymers grafted with isothiocyanatochalcones and phthalocyanine derivatives 
    ROBU, Şt.; DRAGALINA, G.; POPUŞOI, A.; MITCOV, D.; BARBĂ, N.; ANDRIEŞ, A.; CULEAC, I.; IOVU, M.; NISTOR, Iu. (Institutul de Fizică Aplicată al AŞM, 2010)
    Novel polymeric materials grafted with chalcone and phthalocyanine derivatives were synthesized and their luminescent properties were investigated.
  • Managing the luminescence efficiency of the organic compounds of europium(III) through preparation technology 
    BORDIAN, Olga; VERLAN, Victor; CULEAC, Ion; BULHAC, Ion; ZUBAREV, Vera (SPIE, Society of Photo-Optical Instrumentation Engineers, 2020)
    A series of coordination organic compounds based on the trivalent Eu3+ ion were synthesized and optimized: Eu(o-MBA)3phen, Eu(DBM)3(Ph3PO)1•H2O and Eu(TTA)3(Ph3PO)2. The efficiency of the photoluminescence (PL) emission ...
  • Luminophore organic nanocomposites on the base of polymer and isothiocianatohalconic compounds 
    VERLAN, V.; ANDRIESH, A.; IOVU, M.; BORDIAN, O.; BUZURNIUC, S.; NISTOR, Yu.; CULEAC, I.; POPUŞOI, A.; DRAGALIN, G.; BARBĂ, N. (Institutul de Fizică Aplicată al AŞM, 2012)
    The paper presents the results of technology for obtaining nanocomposite thin layers (NC) of organic luminophore compounds (OLC), particularly, those prepared by the sol-gel method.
  • Kinetics of photoinduced absorption in chalcogenide-glass fibers 
    ANDRIESH, A. M.; BINCHEVICI, V. A.; COPACI, T. N.; CULEAC, I. P.; ENACHI, N. A.; LOGHIN, V. M. (SPIE, Society of Photo-Optical Instrumentation Engineers, 1995)
    Experimental and theoretical results are presented for the kinetics of photoinduced absorption in chalcogenide glass fibres. Photoinduced absorption measurements were carried out both at room temperature as well as at ...
  • IR sensing by fiber-optic speckle based interferometer 
    CULEAC, I. P.; NISTOR, Iu. H.; ANDRIESH, A. M.; IOVU, M. S.; ZAGONENCO, V. F. (Institutul de Fizică Aplicată al AŞM, 2012)
    In the previous papers we presented a speckle-based fiber optic method for registration of low intensity infrared radiation, which is based on the interference of propagation modes in the far field of a multimode fiber. ...
  • Infrared Reflectance Investigation of the Structure of xSb2S3.(l-x)As2S3 Glasses 
    KAPOUTSIS, J. A.; KAMITSOS, E. I.; CULEAC, I. P.; IOVU, M. S. (Springer Nature Switzerland, 1997)
    Chalcogenide glasses have attracted much attention over the years in light of their technological applications, including infrared transmitting optical elements, acoustooptic and memory switching devices, and materials ...
  • Generation of coherent phonon pulses by hot electrons in non-crystalline semiconductors 
    ANDRIESH, A. M.; ENAKI, N. A.; KOROLI, V. I.; CULEAC, I. P.; CIORNEA, V. I. (National Institute of Optoelectronics, Romania, 2000)
    We study the cooperative generation of phonon pulses in semiconductors by groups of inverted equidistant multilevel coupled excitations (electrons, excitons). Such equidistant systems take place in chalcogenide glasses ...
  • Fluorescence properties of As2S3 glass doped with rare-earth elements 
    IOVU, M.; ANDRIESH, A.; CULEAC, I. (National Institute of Optoelectronics, Romania, 2005)
    Chalcogenide glasses doped with various rare-earth ions are extensively studied as potential materials for fiber optic amplifiers operating at 1.3 and 1.5 µm telecommunication windows. The experimental results on optical ...
  • Fiber optic speckle based interferometry for IR radiation sensing and intrusion monitoring systems 
    CULEAC, I. P.; NISTOR, Iu. H.; IOVU, M. S.; ANDRIESH, A. M. (Institutul de Fizică Aplicată al AŞM, 2010)
    In the previous paper we have reported a fiber optic method for registration of low intensity infrared radiation based on the effect of interference of propagation modes in the far field of a multimode fiber. In this paper ...
  • Fiber Optic Interferometric Method for Registration of IR Radiation 
    CULEAC, Ion; NISTOR, I.; IOVU, M.; ANDRIESH, A. (Springer Nature Switzerland, 2012)
    A high sensitivity speckle based fi ber-optic method for registration of low intensity IR radiation is described. The method is based on the effect of variation of the speckle pattern in the far-fi eld of a multimode fi ...
  • Fiber—optic displacement sensor 
    ANDRIESH, A. M.; CULEAC, I. P.; BINCHEVICI, V. A.; ABASHKIN, V. G.; SCHITSCO, V. N. (SPIE, Society of Photo-Optical Instrumentation Engineers, 1993)
    This paper describes a microbend displacement sensor with high sensitivity and wide dynamic range designed on the bases of multimode sensor—oriented fiber. A number of high sensitive sensors has been design on the basis ...
  • Evaluation of hole drift mobility in glassy As2S3 in the temperature range 77 - 330 K 
    ANDRIESH, A. M.; CULEAC, I. P.; EWEN, P. J. S.; OWEN, A. E. (National Institute of Optoelectronics, Romania, 2001)
    The temperature behaviour of time-averaged hole drift mobility in As2S3 glass was studied in the range 77-330 K on the basis of temperature dependence of steady-state photoinduced absorption. The time-averaged hole mobility ...
  • DNA-based composite with quercetin and fluorescein for medical applications 
    ROBU, S.; GONTA, A.; GONTA, M.; CULEAC, I.; FILIP, V.; RAU, I. (Institutul de Fizică Aplicată al AŞM, 2014)
    We report here preparation and characterization of DNA based composites, containing DNA as a matrix, and luminescent additives - fluorescein, an organic dye, and quercetin, an organic antioxidant.
  • Characterization the nanocomposites of coordination compounds of Eu3+ ions/PEPC by TGA, DSC, TEM AND SEM 
    BORDIAN, O.; VERLAN, V.; CULEAC, I.; IOVU, M.; BRANCOVEANU, O.; BALAN, D.; BOJIN, D.; ZUBAREVA, V.; ENACHESCU, M. (Institutul de Fizică Aplicată al AŞM, 2016)
    Coordination compounds of Europium(III) are excellent materials for a new generation of light emitting devices with high efficiency, easy color tuning, temperature insensitivity, and high stability. Compounds Eu(TTA)3(Ph3PO)2, ...
  • Characterization of the luminophore compounds based on Eu3+ ions coordinated with different ligands 
    VERLAN, V. I.; BORDIAN, O.; CULEAC, I. P.; IOVU, M. S.; ZUBAREVA, V. E. (Institutul de Fizică Aplicată al AŞM, 2016)
    Organic materials on Eu3+ ions base are excellent materials for a new generation of light emitting devices with high efficiency, and wide potential applications as luminescent labels in biological systems, etc. Organic ...
  • CdSe Quantum Dots and SBMA/CdSe Nanocomposites Characterization by Optical and 2D DOSY NMR Methods 
    GERU, I. I.; BORDIAN, O. T.; CULEAC, I. P.; VERLAN, V. I. (Horizon Research Publishing, 2015)
    We present experimental results on preparation and characterization of colloidal CdSe quantum dots (QDs) and polymer nanocomposite based on them. CdSe QDs were characterized by UV absorbance and visible photoluminescence ...
  • The dynamic behavior of sliding tribosystems in unstable operating conditions 
    POSTARU, A.; POSTARU, Ghe.; CEBAN, V.; SPÂNU, C.; STOICEV, P. (IOP Publishing, 2017)
    The paper addresses the issue of the influence that the law of friction has on the dynamic behavior of the mechanical system that interacts with a tribosystem. The emergence of certain nonlinearities of higher order into ...
  • Physical and chemical processes during the machining by means of the electro-erosive method 
    TOPALĂ, Pavel; SLĂTINEANU, Laurenţiu; STOICEV, Petru (Romanian Association of Nonconventional Technologies, 2010)
    We have analyzed the processes that take place in the interstice and in the electrode surfaces during machining by electro-erosion. It is demonstrated that machining by electro-erosion is accompanied by a series of physical ...
  • Graphite pellicles, methods of formation and properties 
    TOPALA, P.; MARIN, L.; BESLIU, V.; STOICEV, P.; OJEGOV, A.; COSOVSCHII, P. (IOP Publishing, 2015)
    The paper presents the results of experimental investigations aimed at the establishing the composition and the functional properties of the graphite pellicles formed on the metal surfaces by the action of plasma in the ...
  • Theoretical and Experimental Aspects Concerning Elastic Behavior in the Grinding Technological System 
    MAZURU, Sergiu; CASIAN, Maxim (Trans Tech Publications Ltd, 2014)
    In this paper will be treated the problem of strains and stresses within the connections and elements from the grinding technological system.

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