Search Results - "Hadjichristov, G B"

Characterization of PEO/PVP/GO nanocomposite solid polymer electrolyte membranes: microstructural, thermo-mechanical, and conductivity properties by Koduru, H. K., Scarpelli, F., Marinov, Y. G., Hadjichristov, G. B., Rafailov, P. M., Miloushev, I. K., Petrov, A. G., Godbert, N., Bruno, L., Scaramuzza, N.

“…Poly (ethylene oxide) (PEO)/polyvinylpyrrolidone (PVP) blended nanocomposite polymers, incorporating graphene oxide (GO) nano-sheets and embedded with NaIO 4…”
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Mechanical and sodium ion conductivity properties of graphene oxide–incorporated nanocomposite polymer electrolyte membranes by Koduru, H. K., Bruno, L., Marinov, Y. G., Hadjichristov, G. B., Scaramuzza, N.

“…Graphene oxide (GO) nano-sheets incorporated PEO/PVA composite membranes complexed with NaIO 4 salt at different concentrations were prepared using the…”
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Characterization of polymer/liquid crystal composite based electrolyte membranes for sodium ion battery applications by Koduru, H.K., Marinov, Y.G., Hadjichristov, G.B., Scaramuzza, N.

“…A novel PEO/E8 liquid crystal based composite solid polymer electrolyte membranes complexed with NaIO4 salt were prepared by the solution casting technique…”
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Electro-optic modulation by silica-nanostructured nematic system (aerosil/7CB nanocomposite) by Marinov, Y.G., Hadjichristov, G.B., Petrov, A.G., Prasad, S. Krishna

“…We report an experimental study on the electro-optic (EO) response of thin (25 μm) films of a gel nanocomposite produced from heptylcyanobiphenyl (7CB) nematic…”
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Nonlinear optics in materials: integral transformation of optical four-wave mixing spectra by KIROV, N, HADJICHRISTOV, G. B

“…We analyze the estimation of the third-order susceptibility χ^sup (3)^ of nonlinear optical (NLO) materials by means of a Hilbert transformation applied to…”
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Effect of Inhomogeneous Electric Field in a Cell with Side Electrodes: Nematic Liquid Crystal 5CB by Dencheva-Zarkova, M., Hadjichristov, G. B., Marinov, Y. G., Maslyanitsyn, I. A., Petrov, A. G., Popova, L., Shigorin, V. D., Torgova, S. I.

“…— The influence of the geometry of a cell with side electrodes and the parameters of applied pulsed-periodic voltage on the director orientation in nematic…”
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Simulation of the Static Electric Field Effect on the Director Orientation of Nematic Liquid Crystal in the Transition State by Ayriyan, A. A., Ayrjan, E. A., Dencheva-Zarkova, M., Egorov, A. A., Hadjichristov, G. B., Marinov, Y. G., Maslyanitsyn, I. A., Petrov, A. G., Popova, L., Shigorin, V. D., Torgova, S. I.

“…The effect of static electric field on a nematic cell with side electrodes in the transition state (which occurs in the initial stage of field effect on the…”
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Behaviour of photosensitive soft materials: Thermo-optical, dielectric and elastic constant studies on azo-dye doped nematic liquid crystals by Sridevi, S., Hiremath, Uma S., Yelamaggad, C.V., Prasad, S. Krishna, Marinov, Y.G., Hadjichristov, G.B., Petrov, A.G.

“…► Lowering of the bend elastic constant upon photoisomerization of a liquid crystal. ► Dopant structure dependence of the dielectric constant upon…”
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NONLINEAR OPTICAL MATERIALS: NONLINEAR REFLECTION IN COMPOUNDS WITH LARGE PERMANENT DIPOLE MOMENTS by Hadjichristov, G B, Kirov, N

“…We have analyzed the possibility of enhancing the nonlinear reflection of coherent optical waves in materials with large permanent dipole moments, e.g. some…”
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Some features of second harmonic generation in the nematic liquid crystal 5CB in the pulsed-periodic electric field by Ayriyan, A. A., Ayrjan, E. A., Egorov, A. A., Hadjichristov, G. B., Marinov, Y. G., Maslyanitsyn, I. A., Petrov, A. G., Pribis, J., Popova, L., Shigorin, V. D., Strigazzi, A., Torgova, S. I.

“…Second harmonic generation (SHG) induced by an external pulsed-periodic electric field in a 5CB nematic liquid crystal (NLC) is investigated. Deformation of…”
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Single-layered microscale linear-gradient PDLC material for electro-optics by Marinov, Y. G., Hadjichristov, G. B., Petrov, A. G.

“…We report on single‐layered optical material of linear‐gradient microscale polymer‐dispersed liquid crystal (PDLC). E7/NOA65 composite films formed by pulsed…”
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NEUTRON INCOHERENT SCATTERING OF ROTATIONAL AND TRANSITIONAL DYNAMICS IN ANISOTROPIC SYSTEMS - A NEW THEORETICAL APPROACH by Kirov, N, Jordanova, J, Hadjichristov, G B

“…The rotational and translational contributions for the elastic incoherent structure factor (EISF) of neutron scattering in anisotropic systems are considered…”
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Silicon ion implanted PMMA for soft electronics by Hadjichristov, G.B., Gueorguiev, V.K., Ivanov, Tz.E., Marinov, Y.G., Ivanov, V.G., Faulques, E.

“…The electrical conductivity and field-effect transconductance of polymethylmethacrylate (PMMA) subjected to implantation with 50 keV silicon ions at doses in…”
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Emission efficiency of diamine derivatives of tris[4,4,4-trifluoro-1-(2-thienyl)-1,3-butanediono]europium by Stanimirov, S.S., Hadjichristov, G.B., Petkov, I.K.

“…Diamine derivatives of tris[4,4,4-trifluoro-1-(2-thienyl)-1,3-butanediono]europium were synthesized and characterized by NMR, IR and UV–vis spectroscopy. The…”
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Controllable-gradient microscale PDLC electro-optical materials formed by nanosecond laser photopolymerization by Marinov, Y, Hadjichristov, G B, Petrov, A G

“…Nanosecond UV laser photopolymerization is employed to fabricate a polymer dispersed liquid crystals (PDLC) monolayer. The PDLC system contains droplets with a…”
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Optical interference effects in microscale PDLC two-dimensional layers by Hadjichristov, G B, Marinov, Y G, Petrov, A G

“…Optical interference effects are studied in electrically controlled microscale two-dimensional layers of polymer-dispersed liquid-crystal (PDLC) bipolar…”
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Gradient microscale PDLC single layers for light control by Marinov, Y G, Hadjichristov, G B, Petrov, A G

“…The electro-optical (EO) light-switching properties of wedge-formed microscale droplet-gradient single layers of polymer-dispersed liquid crystals (PDLC) are…”
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New Photoactive Guest-Host Nematics Showing Photoflexoelectricity by Petrov, Alexander G., Marinov, Y. G., Hadjichristov, G. B., Sridevi, S., Hiremath, Uma S., Yelamaggad, C. V., Prasad, S. Krishna

“…Here we present new results on guest-host nematic systems featuring an optical degree of freedom based on the trans-cis photoizomerization of a single azo-bond…”
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The luminescence response of diamine-liganded europium complexes upon resonant and pre-resonant excitation by Hadjichristov, G.B., Stanimirov, S.S., Stefanov, I.L., Petkov, I.K.

“…The luminescence of four europium thenoyltrifluoroacetonate complexes containing diamine ligands is studied in solutions. The compounds are resonantly excited…”
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Optical limiting in polar macromolecules in the nanosecond time range by Hadjichristov, G B, Kirov, N, Stefano, I L

“…The optical limiting by resonant two-photon absorption in polar media, such as some conjugated organic compounds with large polarizable x-electron system and…”
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