Results 131 to 140 of about 15,311 (291)
Journal of Analytical Science and Technology, 2010 Angle resolved photoemission spectroscopy (ARPES) is a powerful tool to investigate electronic structures in solids and has been widely used in studying various materials.
Dong-Wook Lee, Changyoung Kim
doaj
Controlling Collective Quasiparticle Dynamics Beyond Decoherence in Topological Interfaces
Laser &Photonics Reviews, EarlyView.Gold nanoparticles placed above a deformed honeycomb plasmonic crystal couple to a chiral topological interface mode. The pseudospin‐split bands ψ+/ ψ− encode spin‐momentum locking, so emitters radiate directionally along the domain wall and share a common phase.
Fatemeh Davoodi
wiley +1 more source
Weighted composition operators on the logarithmic Bloch-Orlicz space.
PLoS ONEThe boundedness and compactness of weighted composition operators on the logarithmic Bloch-Orlicz space [Formula: see text] are investigated in this paper.
Hang Zhou
doaj +1 more source
Revealing the Resonant Physics of Open Photonic Time Crystals
Laser &Photonics Reviews, EarlyView.ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero +5 more
wiley +1 more source
Theory of Supercritical Coupling and Generalized Bound States in the Continuum
Laser &Photonics Reviews, EarlyView.We develop a general theory of supercritical coupling and generalized bound states in the continuum (gBICs), revealing how interference between radiative and absorptive channels enables quality factors beyond conventional material‐loss limits. The framework unifies non‐Hermitian mode coupling, causality‐driven reactive interactions, and interference ...
Sergio Balestrieri +3 more
wiley +1 more source
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Cerebrospinal fluid (CSF) flow oscillations have emerged as a potentially important marker related to brain clearance, but their acquisition often relies on specialized imaging MRI sequences. The purpose of this work was to enable quantitative assessment of CSF flow associated with cardiac, respiratory, and low‐frequency cycles using ...
Pontus Söderström +5 more
wiley +1 more source
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To develop and characterize a static, reusable 13C phantom designed to assess and support the harmonization of MRI setups used for hyperpolarized (HP) [1‐13C]pyruvate imaging. Methods The phantom was designed as a 200‐mm‐diameter polycarbonate sphere filled with 8M natural abundance urea and incorporating distinct modules for assessing
Kristina P. Jacobsen +3 more
wiley +1 more source
Weighted composition operator from Bers-type space to Bloch-type space on the unit ball
, 2013 In this paper, we characterize the boundedness and compactness of weighted composition operator from Bers-type space to Bloch-type space on the unit ball of ...
Mohd Aizat bin Mohamad Nor
core
Spectral properties of weighted composition semigroups on the Bloch space [PDF]
, 2019 Paper presented at the 5th Strathmore International Mathematics Conference (SIMC 2019), 12 - 16 August 2019, Strathmore University, Nairobi, KenyaWe determine both the semigroup and spectral properties of a group of weighted SBS composition operators on
Bonyo, Job, Mose, Samuel, Okoth, Isaac
core
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose FLASH imaging is widely assumed to produce a T1‐weighted steady‐state contrast using RF‐ and gradient‐spoiling. We observed substantial overestimation of CSF signals in simulations, when diffusion was neglected and realistic proton density was applied.
Simon Weinmüller +7 more
wiley +1 more source