Now showing items 1-20 of 21

    • Analysis of measurement of quadratic electro-optic effect in castor oil 

      Izdebski, Marek; Ledzion, Rafał; Kucharczyk, Włodzimierz (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2013)
      This works presents an extended theoretical analysis of the response of experimental setup to an applied electric field during measurements of electro-optic coefficients in optically active liquids using an optical ...
    • Analytical kinetic block model of crystal-mother-phase multilayer interface. 

      Organiściak, Maciej; Izdebski, Marek; Ledzion, Rafał (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2015)
      Simple kinetic block model of multilayer crystal-mother-phase interface is proposed. The model leads to a system of differential equations which can be solved without the need to run Monte Carlo simulations. The proposed ...
    • Application of the mach-zehnder interferometer to measure the quadratic electro-optic effect in nonpolar liquids. 

      Ledzion, Rafał; Górski, Piotr; Kubiak, Katarzyna; Kucharczyk, Włodzimierz (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2015)
      A modification of Mach-Zehnder interferometer is proposed. It is shown that by introducing an additional time dependent phase shift in one of the interferometer arms, its sensitivity may be significantly increased. The ...
    • Effect of ageing on the magnitude and temperature dependence of the Kerr constant in the castor oil used in pharmacy 

      Stępień, Maja; Ledzion, Rafał; Górski, Piotr; Kucharczyk, Włodzimierz (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2012)
      This work presents measurements of the Kerr constant and its temperature dependence in the fresh and aged castor oil used in pharmacy. It is shown that the effect of aging noticeably affects electrooptic properties of the oil.
    • Effect of temperature on the refractive index and Kerr effect of the transformer oil Nynas Nytro Taurus 

      Górski, Piotr; Ledzion, Rafał; Sadowski, Marcin; Kucharczyk, Włodzimierz (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2009)
      The temperature dependence of refractive index of the mineral transformer oil Nynas Nytro Taurus within the range 278-385K is determined. Changes with temperature in the quadratic electrooptic response of the oil are ...
    • The effect of the molecular weight on the electrooptic Kerr phenomenon of metyl silicon oil. 

      Marciniak, Magdalena; Hillebrand, Klaudia; Komenda, Anna; Ledzion, Rafał; Górski, Piotr (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology Press, 2014)
      The Kerr constant and quadratic electrooptic coefficient in methyl silicon oils were measured. The dependence of their magnitude on molecular mass was determined. On the base of obtained results one cannot define the ...
    • Estimations of the magnitude of the fourth-order electrooptic effect in KDP-type crystals 

      Ledzion, Rafał; Izdebski, Marek; Górski, Piotr; Kucharczyk, Włodzimierz (Lodz University of Technology PressWydawnictwo Politechniki Łódzkiej, 2013)
      An attempt to measure the fourth-order electrooptic effect in KH2PO4(KDP) and NH4H2PO4(ADP) is presented. Contrary to previously reported results of the order of magnitude 10-30m4V-4, the fourth-order coefficient |g111111- ...
    • Frequency dependence of the Kerr constant in nynas nytro 3000 oil determined by the polarimetric method 

      Poborska, Julita; Dąbrówka, Dominika; Chwirot, Maksymilian; Ledzion, Rafał; Izdebski, Marek; Kucharczyk, Włodzimierz (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2018)
      Frequency dependence of the Kerr constant in nynas nytro 3000 oil determined by the polarimetric method A frequency dependence of the Kerr constant K in transformer oil Nynas Nytro 3000 within a frequency range 117-5017 ...
    • The impact of aromatic additives on kerr effect in rapeseed oil. 

      Komenda, Anna; Górski, Piotr; Ledzion, Rafał; Izdebski, Marek (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2015)
      The Kerr constant and quadratic electro-optic effect were determined for a few different rapeseed oils. The aim of the study was to investigate if aromatic additives in the oil influence its optical properties. Moreover, ...
    • Influence of electrode material spacing between electrodes on measurement of Kerr constant in castor oil. 

      Perek, Artur; Ledzion, Rafał; Izdebski, Marek; Nowakowski, Krystian; Górski, Piotr (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2014)
      The influence of the electrode material and of the spacing between electrodes on Kerr constant in castor oil is investigated. It is shown that the spacing of the electrodes influences the measurement of Kerr constant whereas ...
    • Kerr constant of Fomblin Z 

      Ledzion, Rafał; Karolczak, Stefan; Górski, Piotr; Kucharczyk, Włodzimierz (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 ...
    • Matrices of the tensor with the internal symmetry [V2][V5] 

      Kucharczyk, Włodzimierz; Górski, Piotr; Ledzion, Rafał (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2012)
      Matrices of the tensor of the internal symmetry [V2][V5] are presented for those point symmetry classes for which the matrices have not been published yet. Conditions allowing for measurements of nonlinear electrooptic ...
    • Modulation technique used for measurement of very weak linear birefringence and dichroism in liquids on the example of castor oil between metal electrodes. 

      Izdebski, Marek; Ledzion, Rafał (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology Press, 2014)
      A technique for measurement of very weak linear birefringence of the order of 10-7and dichroism in liquids is proposed. The method is based on the polarimetric technique. A characteristic feature is that the experimental ...
    • On the nature temperature dependence of intrinsic quadratic electrooptic coefficients in KDP-type crystals 

      Kucharczyk, Włodzimierz; Ledzion, Rafał; Górski, Piotr; Izdebski, Marek (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2010)
      It is shown that the fourth-order electrooptic effect may be responsible for the temperature dependence of the quadratic electrooptic coefficients defined in terms of polarization. An example is given for the ammonium ...
    • On the possibility of measurements of nonlinear electrooptic effects in 432 symmetry crystals 

      Kucharczyk, Włodzimierz; Górski, Piotr; Izdebski, Marek; Ledzion, Rafał (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2011)
      It is shown that despite the fact that in 432 point group crystals the linear electrooptic effect is vetoed by symmetry there are configurations for which the third-order effect may appear. The results obtained indicate ...
    • Optimization of measurement conditions of Kerr constant in optical active liquids on the example of castor oil. 

      Nowakowski, Krystian; Perek, Artur; Izdebski, Marek; Ledzion, Rafał; Górski, Piotr (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology Press, 2014)
      The results of measurements of Kerr constant in castor oil, obtained by dynamic-polarimetric method are presented. Variable optical path length and four measurement setup configurations were used. They differed by the ...
    • Study of electrically induced orientational ordering in mineral oils on the example of orlen oil trafo en. 

      Izdebski, Marek; Adamus, Monika; Jóźwiak, Ewelina; Ledzion, Rafał (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2016)
      A simple model of orientational ordering of molecules in the liquid under the influence of an applied sinusoidal electric field of low frequency is presented. The predicted theoretical dependencies of linear birefringence ...
    • Temperature dependence of the Kerr constant of fomblin M03. 

      Ledzion, Rafał; Górski, Piotr; Izdebski, Marek; Kucharczyk, Włodzimierz (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2016)
      The Kerr constant B of perfluoropolyether Fomblin M03 has been determined within the temperature range 295-370K. At 300K the constant B was found to be equal to 2.8·10-15 m/V2. The measurements indicate that B varies ...
    • Verification of one-dimensional models describing anisotropy of step growth 

      Izdebski, Marek; Ledzion, Rafał (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2017)
      Models that allow to obtain directional dependencies of normal velocity of a straight step on the (001) face of Kossel crystal and its edge free energy are reviewed. The dependencies were considered in a wide range of ...
    • What is the symmetry of castor oil between metal electrodes? 

      Izdebski, Marek; Ledzion, Rafał; Górski, Piotr (Wydawnictwo Politechniki ŁódzkiejLodz University of Technology. Press, 2012)
      Presented experimental data show that castor oil between metal flat electrodes can not be satisfactorily described as an isotropic liquid of ∞ ∞ symmetry, even in the absence of an electric field between the electrodes. ...