Articole din publicaţii naţionale: Recent submissions

Now showing items 1381-1400 of 1493

Interference of resonance luminescence of exciton polaritons in CuGaS2 crystals

SYRBU, N. N.; NEMERENCO, L. L.; STAMOV, I. G.; BEJAN, V. N.; TEZLEVAN, V. E. (Academy of Sciences of Moldova, 2007)

vol. 6 (2), pp. 194-200. ISSN 1810-648X. The nonmodulated and wavelength-modulated reflection spectra of CuGaS2 crystals for the polarization Е||c of 10 K are studied. The states n = 1, 2 and 3 of the excitons Γ4 ...
Superposition of free and bound exciton emission spectra in ZnP2-D48

STAMOV, I. G.; SYRBU, N. N.; URSAKI, V. V.; IVANENCO, Yu. (Academy of Sciences of Moldova, 2011)

Bound exciton lines are found in the luminescence spectra of Mn, Sn, Cd, and Sb doped tetragonal zinc diphosphide crystals at the temperature of 10 K. Zero phonon lines of bound and free exciton emission, as well as their ...
Exciton spectra and energy band structure of CuAlSe2 crystals

SYRBU, N. N.; DOROGAN, A. V.; MASNIK, A.; URSAKI, V. V. (Academy of Sciences of Moldova, 2011)

The main exciton parameters and the refined values of the energy intervals V1(Г7) - C1(Г6), V2(Г6) - C1(Г6) and V3(Г7) - C1(Г6) in CuAlSe2 crystals are discussed. The crystal field and spin-orbit splitting of the balance ...
Absorption and photoconductivity of PbMoO4 crystals

MUSINSCHI, V.; CARAMAN, M.; MUSINSCHI, C. (Academy of Sciences of Moldova, 2011)

Spectral characteristics of the fundamental absorption coefficient and photoconductivity of PbMoO4 crystals with two polarizations in a temperature range of 77 to 300 K are investigated. The measurements of light transmitted ...
Specific features of radiative recombination spectra of ZnIn2S4 single crystals

ARAMA, E.; GHEORGHITA, E.; PINTEA, V.; ZHITAR, V. (Academy of Sciences of Moldova, 2013)

Radiative recombination spectra of Mn-doped zinc tioindat single crystals have been analyzed in the work. The emission spectra interval close to its maximum (1.91 ± 0.2 eV) contains a number of special features which were ...
Numerical optimization of metallized titania nanotube morphologies for negative index material flat lens applications

SERGENTU, V.; ZALAMAI, V.; ENACHI, M.; URSAKI, V. V.; TIGINYANU, I. M. (Academy of Sciences of Moldova, 2010)

We perform numerical calculation in order to optimize the morphology of metallized titania nanotubes from the point of view of flat lens application based on NIM. An efficient multiple-scattering approach is used to calculate ...
Calculation of optical functions of exciton and electron transitions by means of Kramers-Kronig relations in CuAlS2 crystals

STAMOV, I. G.; SYRBU, N. N.; KORZUN, B. V.; URSAKI, V. V.; DOROGAN, A. V.; MASNIK, A. (Academy of Sciences of Moldova, 2013)

Excitonic reflection spectra of CuAlS2 crystals were measured at a temperature of 10 K for E||c and Ec polarizations. The shapes of the lines of ground states of Г4 and Г5 excitons were calculated by means of the ...
Nanostructured ZnO produced from ZnTe for random laser applications

ZALAMAI, V.; BURLACU, A.; POSTOLACHE, V.; RUSU, E. V.; URSAKI, V. V.; TIGINYANU, I. M. (Academy of Sciences of Moldova, 2010)

We propose to produce ZnO nanostructured material by thermal treatment in oxygen ambient of bulk ZnTe crystals and nanowires obtained by electrochemical treatment. Bulk ZnTe crystals are transformed into granular ZnO media ...
Metrological simulators of electrical passive quantities with algorithmic structure

NASTAS, V. (Academy of Sciences of Moldova, 2010)

This Review contains the systematization of the material in the domain of metrological simulators of electrical passive quantities with an algorithmic structure (MS-A, for simplicity), used as reference elements in impedance ...
Unele aspecte privind istoria MCHE din Republca Moldova

AMBROS, Tudor; URSATII, Nicolai (Institutul de Energetica al AŞM, 2015)

În lucrare este descrisă reţeaua hidrografică din Republica Moldova şi unele aspecte istorice a utilizării microcentralelor hidroelectrice (MCHE) pe teritoriul ţării. Sunt prezentate machete de microhidrocentrale, care nu ...
Chaos communication using semiconductor lasers subject to different kinds of optical feedback

TRONCIU, V. Z. (Academy of Sciences of Moldova, 2010)

In this review, we report the results of numerical investigations of the dynamical behavior of an integrated device composed by a semiconductor laser and different cavities that provide optical feedback. Due to the influence ...
Principiul de elaborare a protecţiei prin relee a liniilor electrice aeriene cu autocompensare la scurtcircuite nesimetrice dintre fazele apropiate

CHIORSAC, Mihail; TURCUMAN, Lilia; TURTURICA, Natalia (Institutul de Energetica al AŞM, 2015)

Articolul este consacrat analizei principiilor de elaborare a protecţiei prin relee la scurtcircuite dintre fazele apropiate ale liniilor electrice aeriene (LEA) cu autocompensare în baza componentelor simetrice hexafazate. ...
Effect of interchain interaction on the electrical conductivity and thermopower of TTT2I3 crystals

SANDULEAC, I.; CASIAN, A. (Academy of Sciences of Moldova, 2013)

Quasi one dimensional organic crystals of tetrathiotetracene-iodide TTT2I3 are promising materials for thermoelectric applications. A theoretical study of thermoelectric properties of these crystals was initially performed ...
Teodor Sisianu member of Academy of Science, professor, and scientist of excellence

BOSTAN, I.; CANTER, V. (Academy of Sciences of Moldova, 2013)

Doctor in physics and mathematics (1978), Professor (1980), correspondent member of the Academy of Sciences (1995), Elite Engineer of the Institute of Electrical Engineers UK ( CEng., Fellow of IEE, 1995). Research domain: ...
Peierls structural transition in organic crystals of the TTT2I3 type in a 2D approximation

ANDRONIC, S.; CASIAN, A. (Academy of Sciences of Moldova, 2019)

The metal-insulator transition of the Peierls type is studied in organic crystals of tetrathiotetracene iodide with the lowest carrier concentration value in a 2D approximation. The two most important electron-phonon ...
Synchronization of chaotic quantum dot lasers with external feedback under parameter mismatch

OLOINIC, T.; RUSU, S. S.; TONCIU, V. Z. (Academy of Sciences of Moldova, 2018)

This paper reports the numerical results on the synchronization features of a chaotic quantum dot semiconductor laser. The dynamic behavior is studied in terms of the Bloch equations model. Optimum conditions for chaotic ...
Dependence of Peierls transition on carrier concentration in organic crystals of TTT2I3 in the 3D approximation

ANDRONIC, S.; CASIAN, A. (Academy of Sciences of Moldova, 2018)

The dependence of the Peierls structural transition on carrier concentration in quasi-onedimensional (Q1D) organic crystals of TTT2I3 is studied in the 3D approximation. A more complete physical model that considers ...
Features of contact and surface processes in glassy As2Te13Ge8S3-based structures with Pt electrodes upon interaction with nitrogen dioxide

CIOBANU, Marina (Academy of Sciences of Moldova, 2017)

The capacitance spectra of the interdigital Pt-glassy As2Te13Ge8S3-Pt structures have been investigated in a range of 5-106 Hz with respect to temperature effects in both dry air and its mixture with a controlled concentration ...
Phonon dispersion above the Peierls structural transition in TTF-TCNQ organic crystals

ANDRONIC, Silvia; CASIAN, Anatolie (Academy of Sciences of Moldova, 2016)

The softening of acoustic phonons above the Peierls structural transition in quasi-onedimensional (Q1D) TTF-TCNQ organic crystals is studied. Unlike other papers, a more complete physical model is applied to consider ...
Recognized researcher and valuable university professor on the occasion of the 80th anniversary of prof. Anatolie Casian

KANTSER, Valeriu. (Academy of Sciences of Moldova, 2015)

On November 17, 2015, Anatolie Iradion Casian (until 1995 Kasiyan), Head of Theoretical Mechanics Department of Technical University of Moldova, Professor, DSc, Academician of International Thermoelectric Academy, corresponding ...

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