Results 191 to 200 of about 12,195 (298)

Brillouin Zone Folding‐Driven Topological Band Flips Based on BICs via Twisted Photonic Crystals

Nanophotonics, Volume 15, Issue 11, 13 June 2026.
Brillouin zone folding (BZF)‐driven topological band flips are demonstrated via twisted photonic crystals (PhCs) incorporating bound states in the continuum (BICs). Twist perturbation generates three new bands, each linked to either a BIC or a guided‐mode resonance (GMR).
Guanhua Yang, Tian Sang, Leyi Zhu, Chenyang Wang, Yueke Wang   +4 more
wiley   +1 more source

Ultrafast Spin Dynamics of Pt/Gd₁₉(Co_0.8Fe_0.2)₈₁/Ta Heterostructure Investigated by Double-Pump Terahertz Emission Spectroscopy. [PDF]

Nanomaterials (Basel)
Li C, Lu B, Yu N, Li Z, Xu H, Zhang H, Jin Z.   +6 more
europepmc   +1 more source

High power surface emitting terahertz laser with hybrid second- and fourth-order Bragg gratings. [PDF]

Nat Commun, 2018
Jin Y, Gao L, Chen J, Wu C, Reno JL, Kumar S.   +5 more
europepmc   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, Volume 36, Issue 44, 1 June 2026.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Enhanced Terahertz Thermoelectricity Via Engineered Van Hove Singularities and Nernst Effect in Moiré Superlattices

Advanced Functional Materials, Volume 36, Issue 50, 22 June 2026.
Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin, Arthur L. Shilov, Subhajit Jana, Ilya Mazurenko, Pierre A. Pantaleon, Mikhail Kashchenko, Nikita Krivovichev, Viacheslav Dremov, Igor Gayduchenko, Takashi Taniguchi, Kenji Watanabe, Yibo Wang, Kostya S. Novoselov, Dmitry A. Svintsov, Grigory Goltsman, Elena I. Titova, Denis A. Bandurin   +16 more
wiley   +1 more source

Fabrication of Terahertz Fresnel Zone Plates via Ultraprecision Mechanical Processing. [PDF]

Micromachines (Basel)
Chen M, Wang J, Fang F.
europepmc   +1 more source

Unlocking Multi‐Valley Energy Pockets and Interface‐Induced Phonon Filtering in InSb Thermoelectrics by Reaction‐Driven Interface Engineering

Advanced Functional Materials, Volume 36, Issue 47, 11 June 2026.
InSb, a narrow‐bandgap semiconductor with high carrier mobility, is promising for thermoelectric energy conversion but suffers from high lattice thermal conductivity and strong bipolar conduction. Here, in situ interface engineering using Co2O3 nanoprecursors forms hierarchical CoSbx/In2O3/CoSb3 heterostructures that enhance phonon scattering and ...
Jiwu Xin, Xiao Yang, Xiao‐Lei Shi, Chengyun Xu, Xi Ling, Pengyu Zhang, Jinfeng Dong, Yong Du, Haisheng Chen, Ting Zhang, Zhi‐Gang Chen   +10 more
wiley   +1 more source

Multimodal Optical Biosensing for Precision Medicine and Healthcare: Introduction to the feature issue. [PDF]

Biomed Opt Express
Kumar S, Singh R, Schena E, Min R, Marques C.   +4 more
europepmc   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, Volume 36, Issue 47, 11 June 2026.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Investigation of out-of-plane symmetry-protected bound states in the continuum in terahertz metamaterials. [PDF]

iScience
Yang L, Dan C, Liu S, Ren X, Xie T, Li Q, Zhang B, Ling F.   +7 more
europepmc   +1 more source