Results 201 to 210 of about 32,634 (235)

Optical anisotropy of biotissues

SPIE Proceedings, 2001
To create a model of development of atherosclerosis and other major human diseases the structural and functional peculiarities of bradytrophic tissues were studied in series of investigations. Sclera, cornea, tendon, cartilage and some other tissues belong to bradytrophic tissues, which nutrition is the result of the diffusion of extravasal liquid.
Georgy V. Simonenko, Tatyana P. Denisova, Nina A. Lakodina, Alexander V. Papaev, Valery V. Tuchin   +4 more
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Optical anisotropy of polyisobutene

Polymer, 1976
Abstract The distribution of chemical bonds in polyisobutene results in a theoretically zero optical and electrical anisotropy of the polymer according to bond polarizability additivity principles as conventionally applied, irrespective of polymer chain conformation. Non-zero values of the segmental anisotropy (∼4.4 × 10 −40 C 2 m 2 /J) derived from
J.V. Champion, A. Dandridge, D. Downer, J.C. McGrath, G.H. Meeten   +4 more
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Optical anisotropy of ellipsoidal quantum dots

Physical Review B, 2002
The optical properties of anisotropic quantum dots with ellipsoidal shape are investigated and discussed as a function of the dot aspect ratio. The energy spectrum ~ground and many excited states! is calculated and analyzed in comparison with the spherical quantum dot. The optical matrix elements in the dipole approximation and the oscillator strengths
Cantele G, Piacente G, Ninno D, Iadonisi, G   +4 more
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Optical anisotropy of nanotube suspensions

The Journal of Chemical Physics, 2004
A semimacroscopic model of an optically anisotropic nanotube suspension is derived perturbatively from Maxwell’s equations in a dielectric medium. We calculate leading-order expressions, valid in the dilute and semidilute limits, for the intrinsic and form contributions to the complex dielectric tensor in terms of the volume fraction, mean orientation,
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Optical anisotropy in InAs/AlSb superlattices

Physical Review B, 1994
The optical anisotropy in the layer plane of (100) InAs/AlSb superlattices was investigated by ellipsometry and by reflection difference spectroscopy. The superlattices are anisotropic in the (100) plane with the dielectric function along the [011] and [011\ifmmode\bar\else\textasciimacron\fi{}] axes differing by as much as \ensuremath{\sim}5% in the ...
, Santos, , Etchegoin, , Cardona, , Brar, , Kroemer   +4 more
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Optical Anisotropy of Semiconductor Nanowires

2008
Semiconductor nanowires are novel nanostructures full of promise for optical applications. Nanowires have subwavelength diameters and large aspect ratios, which combined with the high permittivity of semiconductors lead to a strong optical anisotropy.
Gómez Rivas, J., Muskens, Otto L., Diedenhofen, S.L., Borgström, M.T., Bakkers, E.P.A.M.   +4 more
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Induced optical anisotropy in heterodispersed systems

Applied Optics, 1980
Magnetically induced extinction and birefringence of systems containing a mixture of ultramicroscopic particles with different optical and magnetic properties have been theoretically investigated. It is shown that the effects may exhibit an extremum and an inversion in sign with increasing applied field strength if the system contains diamagnetic as ...
D M, Bhagat, R V, Mehta, H S, Shah
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Optical anisotropy of SiGe superlattices

Journal of Applied Physics, 1996
Optical and electrical properties of SiGe strain-adjusted superlattices have been studied. Diode structures were processed into waveguide geometries to investigate the role of optical confinement and the lowering of cubic symmetry with regards to the polarization properties of interband absorption and emission.
Jesper Engvall, Janos Olajos, Hermann G. Grimmeiss, Hartmut Presting, Horst Kibbel   +4 more
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Optical anisotropy in GaSe

Journal of Physics C: Solid State Physics, 1975
Normal-incidence reflectivity spectra of layer-type beta -GaSe crystals have been measured for E perpendicular to c as well as E//c at 78K. A strong anisotropy in the selection rules for interband transitions has been observed and a suitable energy level scheme is proposed.
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Optical anisotropy in cotton

Journal of Physics D: Applied Physics, 1978
The successful observation of multiple-beam interference fringes in cotton is reported, and the method of measuring the optical anisotropy (birefringence) is explained.
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