SEMINAR ABSTRACT
"Ferroelectric and Photorefractive Materials for Imaging and Sensing""

Prof. Nickolai Kukhtarev
Research Professor, Physics Department,
Alabama A&M University

ABSTRACT:
We will present brief review of our research results related to CENSIS goals. Optical, electrical , and acoustical effects in photorefractive and ferroelectric materials will be considered. Optical effects include imaging of acoustical and temperature fields with the help of dynamic holographic gratings. Different selfdiffraction schemes: two-beam and single-beam, isotropic and anisotropic diffraction, will be discussed and compared. Electrical effects include photogalvanic pulsation that may be used as driving power supply for increasing efficiency of dynamic holographic gratings in photorefractive crystals. Compact photogalvanic-pyroelectric source of electrons and X-rays will be discussed. Imaging and elemental analysis with this compact x-ray source will be demonstrated.

Biography: Prof.N.Kukhtarev graduated in Radiophysics and Electronics, from Kharkov University (Ukraine), he received his Ph.D. in 1973 and Habilitus degree in Physical-Mathematical Sciences from Institute of Physics ( Kiev, Ukraine). He was visiting professor in a number of Universities, including: Stanford, University of South California, Technical University of Berlin, University of Arizona, Technical University of Denmark, University of Arkansas, Osnabruck University (Germany).

His current position is Research Professor at the Physics Department in the Alabama A&M University. Main interests: Nonlinear Optics, Material Sciences, Real-Time Holography, Solid State Physics, Electrical and Optical Properties of Semiconductors and Biological objects. In 1999 he has been elected a fellow of OSA in recognition of distinguished service in the advancement of optics
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