Browsing 2009 by Author "DOROGAN, Andrei"

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  • Fiber optic integrated microlens 
    DOROGAN, Valerian; VIERU, Stanislav; VIERU, Tatiana; DOROGAN, Andrei; BANARI, Eugen (Romanian Inventors Forum, 2009)
    It was elaborated the construction and fabrication technology of fiber optic integrated microlens using the method of chemical etching of the optic fiber into a cone shape and forming the microlens by melting the fiber ...
  • Intelligent security system 
    DOROGAN, Valerian; VIERU, Tatiana; VIERU, Stanislav; DOROGAN, Andrei; SECRIERU, Vitalie; MUNTEANU, Eugen; BALICA, Stefan (Romanian Inventors Forum, 2009)
    The intelligent security, alarm and control system represents an autonomous block which uses an accumulator as power supply. The electronic block collects the alarm signals form diverse sensors like humidity, gas or fire ...
  • Schottky diodes based on anisotropic crystals 
    STAMOV, Ion; DOROGAN, Andrei; SÎRBU, Nicolae (Romanian Inventors Forum, 2009)
    Schottky diodes based on planar anisotropic structures of ZnP2 and diverse metals were elaborated. Electrical characteristics of Schottky diodes demonstrate the perspective of their usage as thermosensors or Zener diodes.
  • TE and TM mode separator for visible range based on anisotropic crystals 
    STAMOV, Ion; DOROGAN, Andrei; SÎRBU, Nicolae (Romanian Inventors Forum, 2009)
    The device is elaborated basing on CuGaS2 crystals that possess reflection and absorption optical anisotropy 300 and 10K. It was demonstrated that the absorption is 3000 times more intense at E||c polarization than it is ...
  • Voltage commutator used for protecting optoelectronic devices 
    DOROGAN, Andrei; STAMOV Ion, Ion; SÎRBU, Nicolae (Romanian Inventors Forum, 2009)
    Devices of a Me-crystal-Me structure and the active region of the anisotropic semiconductor crystal Ag3AsS3 were elaborated. The device possesses nonlinear optical characteristics of an N-type shape.

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