Browsing Artykuły (WFTIiMS) by Issue Date
Now showing items 1-20 of 207
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Field emission and microstructural characterization of diamond films deposited by HF CVD method
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2007)Electron emission from diamond films (DF) deposited using HF CVD technique on silicon substrates has been studied. The field emission characteristics were analyzed using the Fowler-Nordheim model. The diamond films were ... -
Thermodynamic properties of solid neon in the reduced all-neighbours approximation of the self-consistent phonon theory
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2007)The results of studies of physical properties of solid neon with the help of the reduced, all-neighbours approximation of the self-consistent phonon theory are presented. The interatomic interactions are described by the ... -
Hole drift mobility in antrachinon layers
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2007)The drift mobility of holes in the antrachinon layers were determined. The layers were evaporated in the vacuum of the order of 10-5Torr. Due to the substrate temperature the layers were in the structure polycrystalline ... -
Laser surface melting of cobalt monocrystal
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2007)The paper presents a concise description of laser surface melting of cobalt monocrystal and some related phenomena. Pulses of electromagnetic radiation of nano and mili-second duration, generated by Nd:YAG laser were used ... -
Self-consistent calculations of the dynamic, thermodynamic and elastic properties of a lattice of atomic crystals
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2007)The application of the self-consistent phonon theory (SCPT) formulated by Plakida and Siklós on the basis of the double-time Green's function method to the atomic crystals: rare gas solids (RGS), quantum crystals (QC) and ... -
Microscopic investigations of Gold Basin and El Hammani chondrites
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2007)Elemental and mineral composition of Gold Basin and El Hammami meteorites discovered in 1995 and 1997 have been studied by analytical electron microscopy and optical microscopy. It was established that the main meteorite ... -
Curing process and the curing product of a nematic epoxy resin containing ester groups
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2007)Curing process and the product of curing of one liquid crystalline epoxy monomer with a standard omine were examined. The reactions were monitored by DSC measurement and dielectric spectroscopy. Progress of curing of the ... -
Dielectric relaxation modes in antiferroelectric liquid crystal mixture
(Politechnika ŁódzkaWydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2007)Mixture of liquid crystals, with induced antiferroelectric phase has been studied by means of dielectric spectroscopy. The dielectric measurements were carried out in a cell with gold electrodes at planar orientation. The ... -
Some of the photothermal properties of one- and two-layer structures
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2007)The results of numerical calculations of temperature on a multi-layer structures' surface illuminated with intensity periodically-modulated beam of light are presented. In fact the influence of some geometrical and thermal ... -
What is the true order of magnitude of the quadratic electrooptic coefficient |g1111-g1122| in RDP crystal?
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2007)Measurements based on the dynamic polarimetric technique of the electrooptic coefficient |g1111-g1122| are applied to determine the order of magnitude of the quadratic electrooptic effect in RDP. The results obtained confirm ... -
On the contribution of the quadratic electrooptic effect to the nonlinear response proportional to the fourth power of modulating field
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2007)It is shown that the fourth-order electrooptic effect cannot be measured without a background of the contribution that is proportional to the square of the quadratic electrooptic coefficient. The contribution manifests on ... -
Numerical investigation of deformations of planar flexoelectric nematic layers containing ions
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2008)Deformations of planar nematic layers of conducting nematic liquid crystal possessing flexoelectric properties and subjected to external d.c. voltage were studied numerically. Various kinds of electrodes, from strongly ... -
Charge carrier conductivity mechanism for activated tetracene layers
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2008)The activation process and the transport process for electrons in the tetracene layers is considered. Obtained results may suggests the hopping transport through the localized states near the Fermi level as a dominant kind ... -
Microstructure of NWA 4435 meteorite
(Politechnika ŁódzkaWydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2008)Elemental composition, mineral composition and microstructure of NWA 4435 meteorite found in 2006 has been studied by analytical electron microscopy and optical microscopy. It was established that the main meteorite minerals: ... -
Dielectric characteristics of antiferroelectric liquid crystalline mixture
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2008)Mixture of liquid crystals, with induced antiferroelectric phase has been studied by means of dielectric spectroscopy. The dielectric measurements were carried out in a cell with gold electrodes at planar orientation. The ... -
Kerr constant of Fomblin Z
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2008)The Kerr constant B of polyperfluoroethylenemethylene oxide Fomblin Z has been determined within the temperature range 295-323K. At 300K the constant B was found to be equal to 1.7 10(-15) m/V2. The results obtained indicate ... -
Gaussian light beam propagation in inhomogeneous medium
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2008)In this work the results of numerical calculations describing propagation of Gaussian light beam in inhomogeneous media is presented. Numerical calculation was based on scalar wave approximation. Additionally the split-step ... -
Role of ions mobility in flexoelectric deformations of conductive homeotropic nematic layers
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2008)Numerical studies of d.c. electric field induced deformations of homeotropic layers of flexoelectric nematics containing ions are presented. It is shown that anomalous dependencies of threshold voltage for deformations on ... -
Electrooptic modulation of light beams deviated far from normal incidence
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2008)It is shown that the electrooptic modulation of the phase difference for the light beams propagating oblique through the crystalline plane-parallel plate appears not only as the direct result of the field-induced changes ... -
Microscopic investigations of Shisr 007 meteorite
(Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2009)Elemental composition, mineral composition and microstructure of Shisr 007 meteorite found in 2001 have been studied by analytical electron microscopy. It was established that the main meteorite minerals: olivines, pyroxenes, ...