Optical scanning holography for tumor extraction from brain magnetic resonance images

Essadike, Abdelaziz; Ouabida, Elhoussaine; Bouzid, Abdenbi

doi:10.1016/j.optlastec.2020.106158

Cited by 6 publications

(1 citation statement)

References 27 publications

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“…Magnetic field as an objective substance contains rich physical information, so it is of great significance to achieve its high-sensitivity measurement in scientific and industrial fields, including the geomagnetic survey, biomagnetic field detection, aviation industry and smart power network monitoring [1][2][3][4]. Magneto-optical materials (e.g.…”

Section: Introductionmentioning

confidence: 99%

Polarization control and enhanced magnetic field sensitivity utilizing surface plasmon polaritons-assisted dual-V-type four-level system

Gu,

Wang,

Zhang

et al. 2023

Phys. Scr.

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We propose a kind of surface plasmon polaritons (SPPs)-assisted dual-V-type four-level composite system used for high-sensitivity weak magnetic field measurement. The SPPs are excited by a D-shaped photonic crystal fiber (PCF) deposited with gold nanowires, and are interacted with the above quantum emitter from the rubidium atomic vapor. In the presence of the external magnetic field, Faraday rotation symmetry is broken due to Zeeman effect, resulting in the polarization plane rotation when a linearly polarized probe field goes through the above quantum emitter. With the help of the coupled field and SPPs, Faraday magneto-optical rotation (MOR) are effectively regulated. The Rabi frequency of the coupled field (Ω c ), quantum interference degree (q), and phase difference (φ) between the applied fields show strong dependence on the MOR angle and magnetic field measurement sensitivity. The simulated results reveal that the maximum MOR angle and magnetic field sensitivity both damp with Ω c expanding and q reducing. The maximum dichroism-independent MOR angle of 89.97° is realized for φ = 0° (180°), and the magnetic field sensitivity of 10.88°/Oe is obtained in the sweeping range of −8.88–8.88 Oe for q = 0.99, being 2.66°/Oe higher than that in the absence of SPPs (q = 0). Most importantly, the output probe field with different polarization forms can be realized by adjusting the φ value. Hence, the proposed device exhibits the potential in the fields of weak magnetic field measurement and polarization control.

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Section: Introductionmentioning

confidence: 99%

Polarization control and enhanced magnetic field sensitivity utilizing surface plasmon polaritons-assisted dual-V-type four-level system

Gu,

Wang,

Zhang

et al. 2023

Phys. Scr.

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Image superpixel segmentation based on hierarchical multi-level LI-SLIC

Liao

Zhao

et al. 2021

Optics & Laser Technology

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Three-dimensional fluorescence imaging through dynamic scattering media by motionless optical scanning holography

Yoneda

Saita

Nomura

2021

Applied Physics Letters

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Three-dimensional (3D) fluorescence imaging is an essential technique in the biomedical field. In particular, 3D fluorescence imaging through dynamic scattering media is a crucial task for the minimally invasive observation of labeled cells. In this study, this task was accomplished via motionless optical scanning holography, proposed as a single-pixel 3D imaging technique. The proposed method does not require additional computational processing or optical components when the detected intensities do not considerably fluctuate irrespective of the presence of dynamic scattering media. The results of a proof-of-principle experiment indicated that the proposed method can help in computationally refocusing fluorescent objects that are placed at different positions behind dynamic scattering media.

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Optical scanning holography for tumor extraction from brain magnetic resonance images

Cited by 6 publications

References 27 publications

Polarization control and enhanced magnetic field sensitivity utilizing surface plasmon polaritons-assisted dual-V-type four-level system

Polarization control and enhanced magnetic field sensitivity utilizing surface plasmon polaritons-assisted dual-V-type four-level system

Image superpixel segmentation based on hierarchical multi-level LI-SLIC

Three-dimensional fluorescence imaging through dynamic scattering media by motionless optical scanning holography

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