Results 71 to 80 of about 1,081,560 (171)

Crystalline–amorphous heterointerface engineering in oxygen‐vacancy‐activated BiOCl for high‐performance aqueous zinc‐ion batteries

FlexMat, EarlyView.
Oxygen vacancy engineered BiOCl with a crystalline–amorphous heterostructure, coupled with an I−/I3− ${\mathrm{I}}_{3}^{-}$ redox‐active electrolyte, enables the optimized cathode to deliver exceptional long‐term cycling stability for aqueous zinc‐ion batteries.
Longjue Hu, Sufang Chen, Daohong Zhang, Qiufan Wang   +3 more
wiley   +1 more source

Breakdown of bulk-radiation correspondence in radiative photonic lattices

Physical Review Research
The topological characteristics of energy bands in crystalline systems are encapsulated in the Berry curvature of the bulk Bloch states. In photonic crystal slabs, far-field emission from guided resonances naturally provides a noninvasive way to probe ...
Xinyi Yuan, Loïc Malgrey, Helgi Sigurðsson, Hai Son Nguyen, Grazia Salerno   +4 more
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, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +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, Bruno Miranda, Silvia Romano, Gianluigi Zito   +3 more
wiley   +1 more source

Tunable Terahertz Generation in Dispersion‐Engineered ZnTe Waveguides

Laser &Photonics Reviews, EarlyView.
A dispersion‐engineered Zinc Telluride (ZnTe) slab waveguide platform enables tunable and efficient guided‐wave terahertz (THz) generation through modal phase matching. By tailoring the optical and THz modal dispersion, coherent THz emission is achieved across 0.1–3 THz.
Arun Jana, Cormac McDonnell, Mai Tal, Anastasiya Reveguk, Amit Kohn, Tal Ellenbogen   +5 more
wiley   +1 more source

Side‐DBR Guided Exciton‐Polariton Lasing With Near‐Field Mode Imaging in an InGaN Thin‐Film Ridge Waveguide

Laser &Photonics Reviews, EarlyView.
Room‐temperature lower‐polariton‐like lasing is realized in an InGaN/GaN thin‐film ridge cavity with lateral distributed Bragg reflectors. Near‐field optical microscopy distinguishes the transverse side‐DBR‐confined mode from a longitudinal photon‐like mode, while simulations reproduce their spatial profiles.
Wai Yuen Fu, Yuk Fai Cheung, Hoi Wai Choi   +2 more
wiley   +1 more source

Chiral Quasi‐BICs Stemming From a Γ‐point Degeneracy

Laser &Photonics Reviews, EarlyView.
Band degeneracies universally exist in 2D periodic systems. However, the studies on the intrinsic properties of those isolated points remain limited. By exploring 3D chiral perturbations, chiral quasi‐BICs are achieved through a Γ‐point degeneracy in resonant metasurfaces with C4 symmetry.
Bohan Zhang, Dongha Yang, Yuhao Wu, Mingqi Zheng, Wei Zhu, Lei Kang, Kang Du, Douglas H. Werner, Shengxiang Wang   +8 more
wiley   +1 more source

Electrically Tunable Momentum Space Polarization Singularities in Liquid Crystal Microcavities

Advanced Science
Momentum space polarization singularities of light appear as vectorial twists in the scattered and radiated far field patterns of exotic photonic structures.
Przemysław Oliwa, Piotr Kapuściński, Maria Popławska, Marcin Muszyński, Mateusz Król, Przemysław Morawiak, Rafał Mazur, Wiktor Piecek, Przemysław Kula, Witold Bardyszewski, Barbara Piętka, Helgi Sigurðsson, Jacek Szczytko   +12 more
doaj   +1 more source

Emergence of Rashba Spin‐Orbit Coupling in Staggered‐Gyromagnetic Photonic Crystals

Laser &Photonics Reviews, EarlyView.
Rashba spin‐orbit coupling emerges in a staggered‐gyromagnetic photonic crystal under a uniform out‐of‐plane magnetic bias. The staggered magnetization splits a four‐fold Dirac point into a Rashba band structure carrying helical spin textures, verified by a four‐band k‐p model.
Yao‐Ting Wang, Wenlong Gao
wiley   +1 more source

Polarization‐Independent Single‐Band Guided‐Mode Resonance InGaAs Photodetector Array for Snapshot Multispectral Sensing

Nanophotonics, Volume 15, Issue 18, 25 September 2026.
Here, we report a single‐band guided‐mode resonance (GMR) InGaAs photodetector (PD) array. The device consists of an InGaAs PD with an ultrathin absorption layer bonded onto a Si 2D grating. Although a 2D crossed‐grating inherently supports many more optical modes than a 1D grating, we realized a single‐band response by introducing novel design ...
Junho Jang, Hosang Hwang, SangHyeon Kim
wiley   +1 more source