Results 71 to 80 of about 762 (140)

Probing Ultrafast Coherent Bandgap Modulation in Monolayer WSe2 by Nonlinear Optics

Advanced Optical Materials, Volume 14, Issue 5, 2 February 2026.
This work sheds light on how resonant nonlinear optics blursthe line between perturbative and non‐perturbative nonlinear optics. Measured deviationsfrom the quadratic second‐harmonic scaling near the excitonic resonance arisefrom optical Stark and Bloch‐Siegert shifts. The experimental results arefurther underpinned by analytical and numerical analysis
Sebastian Klimmer, Thomas Lettau, Laura Valencia Molina, Daniil Kartashov, Ulf Peschel, Jan Wilhelm, Dragomir Neshev, Giancarlo Soavi   +7 more
wiley   +1 more source

Nonreciprocal Terahertz Propagation via InSb Topological Photonic Crystals

Advanced Photonics Research, Volume 7, Issue 2, February 2026.
Addressing the challenge of high magnetic field requirements in conventional gyromagnetic materials, this article investigates indium antimonide (InSb) rod arrays operating at terahertz frequencies. By exploiting the synergy between the Voigt effect and the dispersive scaling properties, robust unidirectional propagation is achieved under a remarkably ...
Chun‐Yu Li, Yong‐Jun Xie, Pei‐Yu Wu, Sai Chen   +3 more
wiley   +1 more source

Strain engineering of topological transitions in 2D materials: a multi-band approach. [PDF]

Sci Rep
Azizi F.
europepmc   +1 more source

A Clarification on Quantum‐Metric‐Induced Nonlinear Transport

Advanced Science, Volume 13, Issue 7, 3 February 2026.
How does the quantum metric truly govern the nonlinear transport? The longstanding theoretical discrepancies are resolved in quantum‐metric‐induced nonlinear transport and the correct intrinsic nonlinear conductivity is identified. Furthermore, a toy model is engineered to suppress the competing effects, uniquely highlighting the role of quantum metric
Xiao‐Bin Qiang, Tianyu Liu, Zi‐Xuan Gao, Hai‐Zhou Lu, X. C. Xie   +4 more
wiley   +1 more source

Berry curvature driven transverse thermoelectric generation in topological magnets. [PDF]

Sci Technol Adv Mater
Sakai A, Nakatsuji S.
europepmc   +1 more source

Dynamic pseudo‐continuous arterial spin labeling angiography using a 3D‐radial multi‐spoke spoiled gradient‐recalled sequence

Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 724-739, February 2026.
Abstract Purpose Accurate identification of arterial feeders and draining veins is critical for treatment decision‐making in patients with intracranial high‐flow vascular lesions. Currently available MRI sequences lack the temporal and spatial resolution needed for this task.
Andreas Petrovic, Martin Soellradl, Thomas W. Okell, Andrew Gauden, Leon Lai, Shalini A. Amukotuwa, Roland Bammer   +6 more
wiley   +1 more source

Classification of quantum-spin-hall topological phase in 2D photonic continuous media using electromagnetic parameters. [PDF]

Nanophotonics
He XT, Zhang SS, Chen XD, Dong JW.
europepmc   +1 more source

Emergent Berry Curvature in Inversion-Symmetric Photonic Crystals for Ultraconfined Topological States. [PDF]

Adv Mater
Tan YJ, Singh R.
europepmc   +1 more source

Nonsymmorphic symmetry enforced Weyl nodal metal in chalcopyrite MnGeAs₂. [PDF]

Sci Rep
Sadhukhan S, Kanungo S.
europepmc   +1 more source

Quantum metric third-order nonlinear Hall effect in a non-centrosymmetric ferromagnet. [PDF]

Nat Commun
Yu H, Li X, Bie YQ, Yan L, Zhou L, Yu P, Yang G.   +6 more
europepmc   +1 more source