Results 31 to 40 of about 3,357,047 (270)

A dual-port THz Time Domain Spectroscopy System optimized for recovery of a sample's Jones matrix. [PDF]

open access: yesSci Rep, 2019
We describe the design, build and characterization of a novel two-output port configuration for a THz-Time Domain Spectroscopy (TDS) system. By introducing a tilted THz ultra-broadband polarizer, we split the THz beam in two orthogonal polarization ...
Zhao G   +5 more
europepmc   +2 more sources

Pixel-wise segmentation of severely pathologic retinal pigment epithelium and choroidal stroma using multi-contrast Jones matrix optical coherence tomography. [PDF]

open access: yesBiomed Opt Express, 2018
Tissue segmentation of retinal optical coherence tomography (OCT) is widely used in ophthalmic diagnosis. However, its performance in severe pathologic cases is still insufficient.
Azuma S   +5 more
europepmc   +2 more sources

Estimation of Jones matrix, birefringence and entropy using Cloude-Pottier decomposition in polarization-sensitive optical coherence tomography. [PDF]

open access: yesBiomed Opt Express, 2016
Estimation of polarimetric parameters has been a fundamental issue to assess biological tissues that have form birefringence or polarization scrambling in polarization-sensitive optical coherence tomography (PS-OCT).
Yamanari M   +11 more
europepmc   +2 more sources

Noise-immune complex correlation for optical coherence angiography based on standard and Jones matrix optical coherence tomography. [PDF]

open access: yesBiomed Opt Express, 2016
This paper describes a complex correlation mapping algorithm for optical coherence angiography (cmOCA). The proposed algorithm avoids the signal-to-noise ratio dependence and exhibits low noise in vasculature imaging.
Makita S   +4 more
europepmc   +2 more sources

Determining the complex Jones matrix elements of a chiral 3D optical metamaterial

open access: yesAPL Photonics, 2019
Due to their strong optical activity, chiral metamaterials are attractive optical elements for the control of the polarization of light. Efficient broadband circular polarizers can be implemented through chiral nanostructures that are periodic and ...
Cédric Kilchoer   +4 more
doaj   +2 more sources

Asymmetric Cryptography Based on the Tropical Jones Matrix

open access: yesSymmetry
In recent years, the tropical polynomial factorization problem, the tropical matrix decomposition problem, and the tropical multivariate quadratic equation solving problem have been proved to be NP-hard. Some asymmetric cryptographic systems based on tropical semirings have been proposed, but most of them are insecure and have been successfully ...
Huawei Huang, Weisha Kong, Ting Xu
exaly   +2 more sources

Floquet angular modulation for 6G systems [PDF]

open access: yesScientific Reports
This paper introduces a computationally efficient method for angular modulation analysis in 5G/6G systems, significantly reducing numerical complexity and computation time compared to conventional techniques.
Bilel Hamdi   +7 more
doaj   +2 more sources

Analysis of polarization characteristics of freeform surface optical system [PDF]

open access: yesITM Web of Conferences, 2022
Freeform surfaces are widely used in off-axis optical systems with large aperture, large field of view, and long focal length. The polarization effect caused by the non-rotationally symmetrical shape has an impact on the system’s polarization imaging ...
Zhang Yilan, Shi Haodong, Jiang Huilin
doaj   +1 more source

Combined Jones–Stokes Polarimetry and Its Decomposition into Associated Anisotropic Characteristics of Spatial Light Modulator

open access: yesPhotonics, 2022
Jones–Stokes polarimetry is a robust in vitro polarimetric technique that can be used to investigate the anisotropic properties of a birefringent medium.
Vipin Tiwari, Nandan S. Bisht
doaj   +1 more source

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