Browsing Inventii by Author "SÎRBU, N."

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  • Definition of optical parameters of quantum wells using non-destructive methods 
    DOROGAN, A.; DOROGAN, V.; SÎRBU, N.; ZALOMAI, V. (Romanian Inventors Forum, 2015)
    A digital method was developed to study the polarization dependency of reflectivity spectra of quantum wells. The method permits to determine more accurate the energy of quantum transitions and subsequent calculation of ...
  • Determinarea indicelui de refracţie în ghidurile de undă planare 
    DOROGAN, A.; DOROGAN, V.; PARVAN, V.; SÎRBU, N. (Universitatea Tehnică din Cluj-Napoca, 2012)
    Ghidurile de undă nanostratificate cu gropi cuantice posedă proprietăţi de birefringenţă, chiar şi cele pe baza materialelor izotrope [1 - 3]. Cele mai sensibile metode de studiu al proprietăţilor de birefringenţă în ...
  • Determination of refractive index in planar waveguides 
    DOROGAN, A.; DOROGAN, V.; PARVAN, V.; SÎRBU, N. (Romanian Inventors Forum, 2012)
    Nanolayered waveguides with quantum wells possess birefringence properties, even those based on isotropic materials. The most sensitive methods of studying birefringence properties in nanowaveguides are the methods of ...
  • High resolution semiconductor switch 
    STAMOV, I.; SÎRBU, N.; DOROGAN, A. (Romanian Inventors Forum, 2019)
    The active layer of the high resolution semiconductor switch is based on single crystal compound Ag3AsS3 placed between metal electrodes.
  • Method of determining the quality of nanostructures 
    DOROGAN, A.; DOROGAN, V.; VIERU, T.; SÎRBU, A.; SÎRBU, N.; ZALOMAI, V. (Romanian Inventors Forum, 2012)
    An analysis method of nanostructures’ quality had been developed using the calculation of optic reflection spectra according to the dispersion relations of the multiple oscillators method applied to the excitonic polaritons ...
  • Metodă de determinare a calităţii nanostraturilor 
    DOROGAN, A.; DOROGAN, V.; VIERU, T.; SÎRBU, A.; SÎRBU, N.; ZALOMAI, V. (Universitatea Tehnică din Cluj-Napoca, 2012)
    A fost elaborată o metodă de analiză a calităţii nanostraturilor utilizând calculele spectrelor optice de reflexie conform relaţiilor de dispersie ale modelului oscilatorilor multipli aplicată pentru polaritonii excitonici ...
  • New method of recording the interference spectra of birefringent crystals 
    DOROGAN, A.; DOROGAN, V.; TIRON, A.; SÎRBU, N. (Romanian Inventors Forum, 2015)
    It was developed a system that changes the half-wave negative sign into positive one in the interference spectra of birefringent crystals. This allows determining more accurately the position of interference bands and ...
  • Optic filters based on anisotropic crystals 
    SÎRBU, N.; DOROGAN, A.; URSACHI, V. (Romanian Inventors Forum, 2018)
    The optical anisotropy of ZnP2, Cu2ZnSiSe4, and CdCa2S4 crystals are manifested by strong gyration effects, birefringence, dichroism, rotation of the polarization plane of light.
  • 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 ...
  • Semiconductor switch 
    STAMOV, I.; DOROGAN, A.; SÎRBU, N. (Technical University "Gheorghe Asachi" of Iași, 2018)
    Stratul activ al întrerupătorului pe semiconductor este bazat pe compusul monocristalin Ag3AsS3, plasat între contacte metalice. Timpul de comutare a dispozitivului din stare ohmic cu valori mari la valori joase constituie ...
  • Separator al modelor optice (TE, TM) pe baza heterostructurilor In0.3Ga0.7As/GaAs cu gropi cuantice 
    SÎRBU, N.; DOROGAN, A.; VIERU, T.; KAPON, E.; MEREUŢA, A. (Universitatea Tehnică din Cluj-Napoca, 2011)
    A fost efectuat studiul spectrelor de luminescenţă, absorbţie şi reflexie ale heterostructurilor In0.3Ga0.7As/GaAs cu gropi cuantice pentru determinarea stărilor electronice fundamentale ale excitonilor polaritonici în ...

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