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Substrate Birefringence Measurement Techniques
Optical Data Storage, 1994A variety of techniques have recently been published for measuring the bulk average values of the MO disk substrate birefringence(1-4). Interpretation of the bulk average birefringence data has been explored in great detail(5). Birefringence in polycarbonate, PC, magneto-optical, MO, disk substrates arises from a combination of frozen-in polymer chain ...
R.-N. Kono, M. S. Jhon, T. E. Karis
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Automated birefringence dispersion measurements
Measurement Science and Technology, 2006A new technique has been developed for investigation of optical dispersion of either natural or stress-induced birefringence. A spectropolarimeter containing a computer-controlled monochromator and two plane polarizers records polariscopic images of a sample via a TV-camera and a video frame grabber in two polarizer configurations: parallel and crossed.
A L Bajor, T Piatkowski, M Leśniewski
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Air-flow-birefringence measurement*
Journal of the Optical Society of America, 1975Air-flow birefringence in normal conditions of pressure and temperature is experimentally proved. Measurements of the change of the polarization of a plane wave propagating through a boundary layer are displayed for both laminar and turbulent flow.
G. R. Boyer +2 more
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Microscale linear birefringence measurement
SPIE Proceedings, 2010A new method for linear birefringence measurement in micro-scale is presented. Mueller matrix is used to represent the anisotropy properties of sample, optical fiber probe of scanning optical near-field microscopy (SNOM) and other optical components. Two polarization modulators are used to complete the quantitative measurement.
Qing-Lin Wu +4 more
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Birefringence measurements in thiourea
Ferroelectrics, 1990Abstract Optical birefringence measurements have been performed on normal (hydrogenated) thiourea between 4 and 300 K. A tentative explanation of the results is given for the whole temperature range.
R. Farhi, F.-J. Schafer, W. Kleemann
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Birefringence measurement of fiber-optic devices
Applied Optics, 1981A spectrometer-polarimeter is described for the measurement of the wavelength-dependent general birefringence of single-mode optical fibers and fiber-optic devices. The polarizer rotates, the analyzer is stepped, and a Fourier transform yields the principal axes and retardation. The Poincaré representation of polarization is used throughout.
Y, Yen, R, Ulrich
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Applied Optics, 2008
A new application of the optical vortex birefringence compensator has been presented. Two parameters of elliptically birefringent medium, an ellipticity angle and an optical path difference, can be measured simultaneously in the setup based on the C polarization type singularities generated using two Wollaston compensators.
Władysław A, Woźniak +1 more
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A new application of the optical vortex birefringence compensator has been presented. Two parameters of elliptically birefringent medium, an ellipticity angle and an optical path difference, can be measured simultaneously in the setup based on the C polarization type singularities generated using two Wollaston compensators.
Władysław A, Woźniak +1 more
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Birefringence imaging with imperfect benches: application to large-scale birefringence measurements
Applied Optics, 2000We describe a birefringence measurement bench that allows fast two-dimensional measurements of low-birefringence fields in large transparent samples. We present calculations that show that, even when a birefringence bench exhibits defects (nonideal components, misalignments, etc.), measurements can be performed under realistic conditions without any a ...
G, de Villèle, V, Loriette
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Birefringence Measurement of Liquid Crystals
Optica Acta: International Journal of Optics, 1979The cylindrical cell method for determining the refractive indices of liquid crystals is described. This method is based on the use of a cylindrical cell composed of a pair of semi-cylindrical prisms and the measurement of the incident angle dependence of transmitted light intensities.
Tadashi Akahane +2 more
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Measurement of birefringence in ZnCdTe
Ferroelectrics, 1992Abstract Birefringence was observed for the first time in the ferroelectric phase of ZnCdTe samples containing 10% and 4% ZnTe. Near the transition temperature, the birefringence varied linearly with the temperature. The temperature coefficient of the indices of refraction was also measured and these also revealed the anisotropy of the ferroelectric ...
E. Fredj +3 more
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