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Subcycle modulation of light's orbital angular momentum via a Fourier space-time transformation.
Sci Adv
January 2025
Center for Nano Science and Technology, Fondazione Istituto Italiano di Tecnologia, Milano, Italy.
Achieving highly tailored control over both the spatial and temporal evolution of light's orbital angular momentum (OAM) on ultrafast timescales remains a critical challenge in photonics. Here, we introduce a method to modulate the OAM of light on a femtosecond scale by engineering a space-time coupling in ultrashort pulses. By linking azimuthal position with time, we implement an azimuthally varying Fourier transformation to dynamically alter light's spatial distribution in a fixed transverse plane.
View Article and Find Full Text PDFOptical control of spin waves in hybrid magnonic-plasmonic structures.
Sci Adv
January 2025
NanoSpin, Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, FI-00076 Aalto, Finland.
Magnonics, which harnesses the unique properties of spin waves, offers promising advancements in data processing due to its broad frequency range, nonlinear dynamics, and scalability for on-chip integration. Effective information encoding in magnonic systems requires precise spatial and temporal control of spin waves. Here, we demonstrate the rapid optical control of spin-wave transport in hybrid magnonic-plasmonic structures.
View Article and Find Full Text PDFAssociations of Central Arterial Stiffness With Brain White Matter Integrity and Gray Matter Volume in MRI Across the Adult Lifespan.
J Magn Reson Imaging
January 2025
Department of Neurology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
Background: Central arterial stiffening is associated with brain white matter (WM) damage and gray matter (GM) volume loss in older adults, but little is known about this association from an adult lifespan perspective.
Purpose: To investigate the associations of central arterial stiffness with WM microstructural organization, WM lesion load, cortical thickness, and GM volume in healthy adults across the lifespan.
Study Type: This is a cross-sectional study.
Waist circumference and altered metabolic indices are associated with increased resting pulse rate in middle-aged adults.
Monaldi Arch Chest Dis
January 2025
Faculty of Medicine, The University of Jordan, Amman.
Metabolic indices significantly impact cardiovascular health. Research on the influence of metabolic indices on resting pulse rate in younger adults is needed. Utilizing the National Longitudinal Study of Adolescent to Adult Health (Add Health) Wave 5 Public-use biological data, we performed a multiple linear regression analysis to determine the predictive factors of resting pulse rate in adults aged 32-42 years.
View Article and Find Full Text PDFHeart failure with preserved ejection fraction: from echocardiographic characteristics to a cardiovascular damage score in a high-risk hypertensive population.
J Hypertens
December 2024
Division of Internal Medicine, Candiolo Cancer Institutute FPO - IRCCS, Candiolo.
Background: Heart failure with preserved ejection fraction (HFpEF) is a high prevalence condition, with high rates of hospitalization and mortality. Arterial hypertension is the main risk factor for HFpEF. Among hypertensive patients, alterations in cardiac and vascular morphology identify hypertension-mediated organ damage (HMOD).
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