Results 151 to 160 of about 574,967 (191)

Measurement of Mueller matrices

Applied Optics, 1992
A technique that allows Mueller matrix components to be measured and involves the use of two phase modulators instead of the usual method that uses four modulators is discussed. It allows true matrix components to be measured instead of the ratio of sums of matrix components, which are measured using a single modulator.
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A complete characterization of pre-Mueller and Mueller matrices in polarization optics

Journal of the Optical Society of America A, 2010
The Mueller-Stokes formalism that governs conventional polarization optics is formulated for plane waves, and thus the only qualification one could require of a 4 x 4 real matrix M in order that it qualify to be the Mueller matrix of some physical system would be that M map Omega((pol)), the positive solid light cone of Stokes vectors, into itself.
Simon, BN, Simon, S, Mukunda, N, Gori, F, Santarsiero, M, Borghi, R, Simon, R   +6 more
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Serial–parallel decompositions of Mueller matrices

Journal of the Optical Society of America A, 2012
The algebraic methods for serial and parallel decompositions of Mueller matrices are combined in order to obtain a general framework for a suitable analysis of polarimetric measurements based on equivalent systems constituted by simple components. A general procedure for the parallel decomposition of a Mueller matrix into a convex sum of pure elements ...
José J, Gil, Ignacio, San José, Razvigor, Ossikovski   +2 more
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Constraints on Mueller matrices of polarization optics

Applied Optics, 1993
The issue of physical realizability constraints on depolarizing scattering or imaging systems is addressed. In particular, the overpolarization problem, i.e., the problem of ensuring that the output degree of polarization is always smaller than (or equal to) unity, is discussed in detail.
A B, Kostinski, C R, Givens, J M, Kwiatkowski   +2 more
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Mueller matrices and the degree of polarization

Optics Communications, 1998
This article shows that only polarizers, retarders, and improper rotation Mueller matrices do not decrease the degree of polarization for any input Stokes vector. On the other hand, a Mueller matrix does not increase the degree of polarization for any input Stokes vector if and only if it has an unpolarized Stokes vector as eigenvector.
Shih-Yau Lu, Russell A. Chipman
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A Depolarization Criterion in Mueller Matrices

Optica Acta: International Journal of Optics, 1985
A necessary and sufficient scalar condition for a Mueller matrix M to describe a non-depolarizing optical system is obtained. By computing only one scalar parameter, it can be determined whether a given Mueller matrix M describes a non-depolarizing, or a depolarizing optical system.
José Jorge Gil, Eusebio Bernabeu
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Canonical forms of depolarizing Mueller matrices

Journal of the Optical Society of America A, 2009
It is shown that any depolarizing Mueller matrix can be reduced, through a product decomposition, to one of a total of two canonical depolarizer forms, a diagonal and a non-diagonal one. As a consequence, depolarizing Mueller matrices can be divided into Stokes diagonalizable and Stokes non-diagonalizable ones.
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Spatial–angular Mueller matrices

Optics Communications, 2006
Arbitrary polarization changing devices are described within paraxial approximation by their action on the spatial angular Stokes parameters associated with the generalized rays of a Wigner formulation of wave optics. This approach leads to the introduction of generalized Mueller matrices being functions of the spatial and angular variables ...
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Mueller Matrices and Depolarization Criteria

Journal of Modern Optics, 1987
The question of whether a given Mueller matrix represents a deterministic or a non-deterministic system is analysed by means of a matrix condition. The possibility of replacing this matrix condition by a scalar condition is examined. It is shown that this is permissible only for those cases where a Hermitian matrix constructed from the Mueller matrix ...
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Classification of Depolarizing Mueller Matrices

Frontiers in Optics, 2006
Within the sixteen-dimensional space of Mueller matrices, nine degrees of freedom are associated with depolarization which can be visualized using Degree of Polarization Surfaces, and Maps.
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