Results 41 to 50 of about 3,357,047 (270)

Multi-Contrast Jones-Matrix Optical Coherence Tomography—The Concept, Principle, Implementation, and Applications [PDF]

open access: yesIEEE Journal of Selected Topics in Quantum Electronics, 2022
Jones-matrix optical coherence tomography (JM-OCT) is an extension of polarization-sensitive OCT, which provides multiple types of optical contrasts of biological and clinical samples.
Y. Yasuno
semanticscholar   +1 more source

Spun fibers and their description within the Jones formalism in analyzing the practical fiberoptic circuits

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023
In this paper, an analytical form for the Jones matrix of a real spun fiber has been obtained, taking into account a slight deviation of its properties from an idealized representation of this fiber by the rotation matrix.
Temkina Valentina   +5 more
doaj   +1 more source

Interferometric weak value of polarization observable and differential Jones matrix algebra [PDF]

open access: yesJournal of Optics, 2021
The quantification of simultaneously present weak polarization anisotropy effects are of practical interest from polarimetric and metrological perspective. Recently, in Modak et al (2021 Phys. Rev.
Niladri Modak   +3 more
semanticscholar   +1 more source

Jones-matrix formalism as a representation of the Lorentz group [PDF]

open access: yesJournal of the Optical Society of America A, 1997
It is shown that the two-by-two Jones-matrix formalism for polarization optics is a six-parameter two-by-two representation of the Lorentz group. The attenuation and phase-shift filters are represented respectively by the three-parameter rotation subgroup and the three-parameter Lorentz group for two spatial and one time dimensions.
Han, D., Kim, Y. S., Noz, Marilyn E.
openaire   +2 more sources

Polarization Domain Spectrum Sensing Algorithm Based on AlexNet

open access: yesSensors, 2022
In this paper, we propose a spectrum sensing algorithm based on the Jones vector covariance matrix (JCM) and AlexNet model, i.e., the JCM-AlexNet algorithm, by taking advantage of the different state characteristics of the signal and noise in the ...
Shiyu Ren   +3 more
doaj   +1 more source

The Jones polynomial from a Goeritz matrix

open access: yesBulletin of the London Mathematical Society, 2022
AbstractWe give an explicit algorithm for calculating the Kauffman bracket of a link diagram from a Goeritz matrix for that link. Further, we show how the Jones polynomial can be recovered from a Goeritz matrix when the corresponding checkerboard surface is orientable, or when more information is known about its Gordon–Litherland form.
openaire   +3 more sources

Numerical Study of Polarization Dynamics in Optical Fibers with a Harmonically Rotating Birefringence Axis using Stokes Vectors Approach [PDF]

open access: yesفیزیک کاربردی ایران
The control and analysis of polarization dynamics in optical fibers in the presence of birefringence are important, particularly for sensitive applications such as quantum communications and optical sensors.
Somaye Zare   +2 more
doaj   +1 more source

A Parsimonious Test of Constancy of a Positive Definite Correlation Matrix in a Multivariate Time-Varying GARCH Model

open access: yesEconometrics, 2022
We construct a parsimonious test of constancy of the correlation matrix in the multivariate conditional correlation GARCH model, where the GARCH equations are time-varying. The alternative to constancy is that the correlations change deterministically as
Jian Kang   +4 more
doaj   +1 more source

Calibration of the complete Jones matrix of SLMs

open access: yesOptical Instrument Science, Technology, and Applications II, 2021
Spatial light modulators are very common in many applications. They are used to implement amplitude, phase and polarization masks. In order to optimize its performance, it is important to characterize it, which means determining its Jones matrix. Here we present a method which consists on performing several intensity measurements for each gray level ...
Del Hoyo Muñoz, Jesús   +2 more
openaire   +2 more sources

Pengenalan Ekspresi Wajah dengan Metode Viola Jones dan Convolutional Neural Network

open access: yesKomputika, 2021
Saat ini penggunaan kecerdasan buatan berkembang dengan pesat, diantaranya dimanfaatkan untuk mengenali ekspresi wajah manusia. Ekspresi wajah manusia memiliki tingkat pengenalan yang kompleks.
Reza Rizki Reynaldo, Irfan Maliki
doaj   +1 more source

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