ZfN: Search Results

1	Author	M. F. Mahmood	Requires 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

2	Author	Z. Czapla, S. Dacko, B. Kosturek	Requires 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