Results 141 to 150 of about 526,512 (257)
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
, 2013 Electromagnetic metamaterials, artificial media created by subwavelength structuring, are useful for engineering electromagnetic space and controlling light propagation. Such materials exhibit many unusual properties that are rarely or never observed in
Poddubny, Alexander N +7 more
core +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 +8 more
wiley +1 more source
An efficient closed-loop design framework for additive manufacturing of multiphysical metamaterials
Materials & DesignAchieving multifunctionality has long been a key objective in the development of functional materials. Metamaterials have emerged as a promising solution due to their exceptional ability to manipulate physical fields. However, current metamaterial design
Xiaochang Xing +7 more
doaj +1 more source
Multispectral Mid‐Infrared Imaging With Incoherent Light via Adiabatic Upconversion
Laser &Photonics Reviews, EarlyView.We demonstrate room‐temperature broadband MIR imaging based on adiabatic frequency upconversion, driven by a Q‐switched pump laser and incoherent illumination. The small‐foot‐print system upconverts the spectral range to the visible domain, without scanning, thermal control and with spatial resolution below 20μm$20\mathrm{\mu}\mathrm{m}$.
Daniel Beitner +4 more
wiley +1 more source
Leaky Topological Edge State Cavities for On‐Chip Terahertz Sensing
Laser &Photonics Reviews, EarlyView.Engineering radiation leakage in topological edge state cavities (TESCs) turns a conventional loss channel into a resource for enhancing on‐chip terahertz‐matter interactions. Tailoring the radiation leakage of a valley photonic crystal produces guided TESC with loaded Q factors up to 14 148 and leaky TESC with 2.2‐fold higher sensitivity, reaching 150.
Wenhao Wang, Zhonglei Shen, Ranjan Singh
wiley +1 more source
Физика волновых процессов и радиотехнические системы, 2014 The foundations of the correct electrodynamic analysis of geometrically and physically chiral elements and metamaterials. As the main tool is proposed to use the integral representation of the electromagnetic field stranded wire structure.
V.A. Neganov, D.P. Tabakov
doaj
The left hand of electromagnetism: Metamaterials
, 2016 Cataloged from PDF version of article.
openaire +2 more sources
Chip‐Scale Terahertz Sensing Driven by Supercoupling Induced Transparency in Topological Cavities
Laser &Photonics Reviews, EarlyView.Supercoupling‐induced transparency (SIT) in topological cavities enables sensitive terahertz sensing on a chip. Strong field confinement and slow light response enhance interactions with thin films, enabling thickness detection through resonance shifts and group delay changes.
Wenhao Wang, Zhonglei Shen, Ranjan Singh
wiley +1 more source
Fano resonance and light localization in disordered metamaterials
We present the first experimental study of light localization in disordered planar metamaterials. The statistics of the near field intensity are investigated and the role of subradiant and superradiant modes is ...
Jenkins, S. +4 more
core +1 more source