Results 211 to 220 of about 102,528 (267)

Optical polarization imaging

Applied Optics, 1997
The temporal profiles of the parallel and perpendicular polarization components of a light pulse backscattered from a scattering medium are different. The depth of penetration into the tissue and depolarization of the backscattered light depend on the scattering and absorption characteristics of the tissue.
S G, Demos, R R, Alfano
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Polarization and optical logic

Applied Optics, 1986
The design of an optical logic parallel processor is described. The central component is a Fabry-Perot cavity, filled with a nonlinear layer and a linear anisotropic layer, such as a sheet of mica. The two logic states are represented by two orthogonal states of the polarization of the light beam.
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Optical characterization of a polarization imager

2011 IEEE International Symposium of Circuits and Systems (ISCAS), 2011
Polarization is a fundamental property of light for which humans have no innate detector. Numerous sensors have been devised to capture this property of light. Of these types of sensors, division of focal plane polarimeters allow for both high resolution and real-time capture of the angle and degree of polarization.
Timothy York, Viktor Gruev
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Integrated optical polarizer

Optics Communications, 1976
In the following a polarizer will be described whose dielectric multilayer is not incorporated as a discontinuity in the planar waveguide as in /1/ but is deposited as a superstrate. A polarizer in the form of a dielectric multilayer and a glass plate (refractive index nG) is deposited as a superstrate on a planar waveguide (refractive index nF, film ...
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Linear optics of polarization sheets

Applied Physics B Photophysics and Laser Chemistry, 1987
We develop a theory in which thin films or monolayers of strongly polarizable molecules are described as linear polarization sheets. We show that this concept in combination with the transfer matrix method allows a transparent derivation of the transmission and reflection properties of a composite interface.
Felderhof, B., Marowsky, G.
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Optical approach to concurrence and polarization

Optics Letters, 2018
We address a recently established relationship, C2+P2=1, which engages concurrence (C) and polarization (P). This relationship has revealed a striking connection between two seemingly unrelated measures. Indeed, while C quantifies entanglement, which is widely seen as a quantum information resource, P quantifies the amount of coherence between optical ...
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Polarized Optical-Flow Gyroscope

2020
We merge by generalization two principles of passive optical sensing of motion. One is common spatially resolved imaging, where motion induces temporal readout changes at high-contrast spatial features, as used in traditional optical-flow. The other is the polarization compass, where axial rotation induces temporal readout changes due to the change of ...
Masada Tzabari, Yoav Y. Schechner
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Disorientated optical polarization devices

Optics Letters, 2011
By using a pure operatorial (nonmatrix) approach to some of the variable composite polarization devices, we show that for some values of the variable internal parameters, these devices lose their anisotropy. Their principal axes, or more generally their eigenvectors, become undetermined, i.e., in this sense, the anisotropic devices get "disorientated."
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Polarization optics of liquid-core optical fibers

Applied Optics, 1977
Whereas straight liquid-core optical fibers have the capability of transporting linearly polarized light with any incident polarization angle,bent fibers exhibit form birefringence with the principal axes fixed to the plane of curvature. The effect of this curvature-dependent birefringence can be compensated by either periodically altering the plane of
A, Papp, H, Harms
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Elasto-optic polarization measurement in optical fiber

Optics Letters, 1981
A method is described for the nondestructive determination of the state of polarization of the guided light at an arbitrary point along a single-mode fiber. The fiber is squeezed laterally with a small, periodic (75-Hz) force. The azimuth of the force is varied.
N, Chinone, R, Ulrich
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