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'Birefringence' in keywords Facet   section ZfN Section A:Volume 055  [X]
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2000 (2)
1Author    M. F. MahmoodRequires cookie*
 Title    Polarized Chirped Soliton Oscillations in a Lossy Elliptically Low Birefringent Optical Fiber  
 Abstract    Using a variational method, a new model of the nonlinear propagation of optical solitons generated from semiconductor lasers through a lossy elliptically low birefringent fiber, is presented within the frame-work of a system of coupled nonlinear Schroedinger (CNLS) equations. This model demonstrates polar-ized soliton oscillations in a lossy elliptically low birefringent fiber. 
  Reference    Z. Naturforsch. 55a, 941—944 (2000); received September 16 2000 
  Published    2000 
  Keywords    Solitons, Birefringence, Polarization, Optical Fiber 
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 TEI-XML for    default:Reihe_A/55/ZNA-2000-55a-0941.pdf 
 Identifier    ZNA-2000-55a-0941 
 Volume    55 
2Author    Z. Czapla, S. Dacko, B. KosturekRequires cookie*
 Title    Ferroelectricity and Phase Transitions in Pyridinium Periodate Single Crystal  
 Abstract    Single crystals of pyridinium periodate were grown, and their physical properties were studied. Anomalies of the electric permittivity and birefringence were observed at T CL = 321 K and T C2 = 211 K. These observations gave evidences for the existence of three phases denoted as I, II, and III. Hysteresis loops were observed both in phase II and III. Pyroelectric measurements showed two anomalies at T CL and T C2 . The anomaly at T CL is related to the transition between a para-and ferroelectric phase, and the anomaly at T cl to the transition between two ferroelectric phases. 
  Reference    Z. Naturforsch. 55a, 891—894 (2000); received August 8 2000 
  Published    2000 
  Keywords    Phase Transitions, Ferroelecticity, Dielectric Properties, Birefringence 
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 TEI-XML for    default:Reihe_A/55/ZNA-2000-55a-0891.pdf 
 Identifier    ZNA-2000-55a-0891 
 Volume    55