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An innovative cholesteric liquid crystal biosensor enabling high-contrast colorimetric detection and haze-based quantitation. [PDF]
J Biol EngPeng TH, Chang CT, Lee MJ, Lee W.
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Strain amplitude sweep testing of oscillatory shear of transient networks with controlled network structures. [PDF]
Sci Technol Adv MaterSato R +8 more
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Relaxation of Shear-Induced Orientation and Textures in Semi-Dilute DNA Solutions. [PDF]
Polymers (Basel)López-Alvarez SE +9 more
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Interferometric stress birefringence measurement
Applied Optics, 1992We describe a sensitive method for measuring the stress birefringence of an optical window that utilizes a phase-measuring Fizeau interferometer incorporating a variable retarder and a nonpolarizing beam splitter. When we test a material in an interferometer cavity, the wave front transmitted through the material is deviated by the surfaces ...
E R, Cochran, C, Ai
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Birefringence measurements of liquid crystals
Applied Optics, 1984A convenient and accurate technique for measuring the birefringence of liquid crystals at discrete wavelengths or as a continuous function of wavelength in the ultraviolet, visible, or infrared spectral regions is described. The method is based on determination of the phase differences which occur when monochromatic polarized light propagates through a
S T, Wu, U, Efron, L D, Hess
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Birefringence measurement by speckle statistics
Applied Optics, 1985The statistical polarization properties of speckle patterns are used to develop a method for measuring birefringence inherent in a speckle producing process. A formula is derived for the mean value of the second Stokes parameter as a function of the birefringence and of the angular orientation of the linear retarder. Measurements have been successfully
P F, Steeger, T, Asakura
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Measurements of birefringent media properties using optical vortex birefringence compensator
Applied Optics, 2007We present some applications of the optical vortex birefringence compensator, based on the C polarization type singularities generated using two Wollaston compensators. The theory and experimental results of birefringent media properties measurements are presented.
Monika, Borwińska +2 more
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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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