Articles with "optical attenuation" as a keyword



Effects of optical attenuation, heat diffusion, and acoustic coherence in photoacoustic signals produced by nanoparticles

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Published in 2018 at "Applied Physics Letters"

DOI: 10.1063/1.5008873

Abstract: The behavior of the photoacoustic signal produced by nanoparticles as a function of their concentration was studied in detail. As the concentration of nanoparticles is increased in a sample, the peak-to-peak photoacoustic amplitude increases linearly… read more here.

Keywords: optical attenuation; produced nanoparticles; effects optical; attenuation ... See more keywords

Optical Attenuation Characterization of Water Contaminated Lubricating Grease

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Published in 2018 at "Tribology Transactions"

DOI: 10.1080/10402004.2017.1404175

Abstract: ABSTRACT Water-contaminated grease samples are investigated with attenuation spectra in the visible and near-infrared (NIR) regions in this article. The purpose of this investigation was to identify a model with optical attenuation spectra such that… read more here.

Keywords: grease; optical attenuation; methodology; water contaminated ... See more keywords

Practical security of continuous-variable quantum key distribution with reduced optical attenuation

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Published in 2019 at "Physical Review A"

DOI: 10.1103/physreva.100.012313

Abstract: In a practical CVQKD system, the optical attenuator can adjust the Gaussian-modulated coherent states and the local oscillator signal to an optimal value for guaranteeing the security of the system and optimizing the performance of… read more here.

Keywords: reduced optical; optical attenuation; practical security; system ... See more keywords

Rayleigh Backscattering Analysis in POFs for High Spatial Resolution Distributed Sensing

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Published in 2024 at "IEEE Photonics Technology Letters"

DOI: 10.1109/lpt.2024.3480790

Abstract: This letter presents the Rayleigh backscattering analysis in perfluorinated polymer optical fibers (POFs). In this case, the optical backscattering reflectometry is used on the analysis of the scattering optical signals in the time and frequency… read more here.

Keywords: optical attenuation; analysis; rayleigh backscattering; backscattering analysis ... See more keywords
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Statistical modeling of optical attenuation measurements in continental fog conditions

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Published in 2017 at "Optical Engineering"

DOI: 10.1117/1.oe.56.3.036113

Abstract: Abstract. Free-space optics is an innovative technology that uses atmosphere as a propagation medium to provide higher data rates. These links are heavily affected by atmospheric channel mainly because of fog and clouds that act… read more here.

Keywords: optical attenuation; modeling optical; statistical modeling; measurements continental ... See more keywords

Correlation of optical attenuation coefficient estimated using optical coherence tomography with changes in astrocytes and neurons in a chronic photothrombosis stroke model.

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Published in 2019 at "Biomedical optics express"

DOI: 10.1364/boe.10.006258

Abstract: The optical attenuation coefficient (OAC) estimated using optical coherence tomography (OAC-OCT) offers a label-free 3D mapping of tissue infarction, but the physiological origin of the OAC contrast remains unclear. For effectively suppressing OAC fluctuations, we… read more here.

Keywords: optical attenuation; contrast; changes astrocytes; infarction ... See more keywords

Depth-resolved visualization and automated quantification of hyperreflective foci on OCT scans using optical attenuation coefficients.

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Published in 2022 at "Biomedical optics express"

DOI: 10.1364/boe.467623

Abstract: An automated depth-resolved algorithm using optical attenuation coefficients (OACs) was developed to visualize, localize, and quantify hyperreflective foci (HRF) seen on OCT imaging that are associated with macular hyperpigmentation and represent an increased risk of… read more here.

Keywords: using optical; depth resolved; optical attenuation; oct scans ... See more keywords

Optical Attenuation Coefficient Optimization Algorithm for Deep Tissue Signals in Optical Coherence Tomography Based on Kalman Filter

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Published in 2023 at "Photonics"

DOI: 10.3390/photonics10040460

Abstract: Optical coherence tomography (OCT) attenuation imaging is a technique that uses the optical attenuation coefficient (OAC) to distinguish the types or pathological states of tissues and has been increasingly used in basic research and clinical… read more here.

Keywords: optical attenuation; attenuation; optical coherence; attenuation coefficient ... See more keywords