Results 61 to 70 of about 824 (185)

Interaction of Ge(Si) Self-Assembled Nanoislands with Different Modes of Two-Dimensional Photonic Crystal

Nanomaterials, 2022
The interaction of Ge(Si)/SOI self-assembled nanoislands with modes of photonic crystal slabs (PCS) with a hexagonal lattice is studied in detail. Appropriate selection of the PCS parameters and conditions for collecting the photoluminescence (PL) signal
Margarita V. Stepikhova, Sergey A. Dyakov, Artem V. Peretokin, Mikhail V. Shaleev, Ekaterina E. Rodyakina, Alexey V. Novikov   +5 more
doaj   +1 more source

Low‐Dimensional Materials and Van Der Waals Heterostructures for Energy Application: A Comprehensive Review

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Low‐dimensional materials (0D, 1D, and 2D) exhibit unique electronic and physicochemical properties, enabling advanced nanoelectronic and optoelectronic devices. Mixed‐dimensional heterostructures combine these materials to enhance functionality.
Qaisar Alam, Sajjad Ali, Pir Muhammad Ismail, ABM Sharif Hossain   +3 more
wiley   +1 more source

Angular and polarization properties of a photonic crystal slab mirror

Optics Express, 2004
It was recently demonstrated that a photonic crystal slab can function as a mirror for externally incident light along a normal direction with near-complete reflectivity over a broad wavelength range. We analyze the angular and polarization properties of such photonic crystal slab mirror, and show such reflectivity occurs over a sizable angular range ...
Lousse, Virginie, Suh, W., Kilic, O., Kim, S., Solgaard, O., Fan, S.   +5 more
openaire   +3 more sources

Actinide 4,4′‐Bipyridine‐N,N′‐Dioxide Coordination Polymers: Cationic Framework Structures Templated by Dicyanoaurate and Tetracyanoaurate Counterions

European Journal of Inorganic Chemistry, EarlyView.
Th4+ or UO22+ actinides, neutral bipyridine‐N,N’‐dioxide ligands, and anionic cyanoaurate linkers are combined to generate a family of four coordination polymers. ‘Truss bridge’ and square grid cationic frameworks are yielded when using [Au(CN)2]− or [Au(CN)4]−, respectively, indicating a templating effect guided by either aurophilic interactions ...
Sylvain St. Louis, Thomas E. Karpiuk, Daniel B. Leznoff   +2 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

Lead‐free halide perovskites for efficient light‐emitting devices

FlexMat, EarlyView.
Overview of Lead‐free metal halide perovskites with different categories and optoelectronic application directions, including solid‐state lighting, light‐emitting diodes, piezoluminescence, flexible electronics, scintillators and CPL emitters. Abstract Lead halide perovskites exhibit promising optoelectronic properties for optoelectronic applications ...
Yueqi Shen, Kefan Meng, Yiqi Zhao, Chaoran Zhou, Jiaye Shu, Di Zhang, Chengqian Cao, Wanxin Chen, Yefeng Zhou, Weihua Ning   +9 more
wiley   +1 more source

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

Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces

InfoMat, EarlyView.
A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley   +1 more source

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

Laser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source

Optimization of resonances in photonic crystal slabs [PDF]

SPIE Proceedings, 2003
Variational methods are applied to the design of a two-dimensional lossless photonic crystal slab to optimize resonant scattering phenomena. The method is based on varying properties of the transmission coefficient that are connected to resonant behavior.
Robert P. Lipton, Stephen P. Shipman, Stephanos Venakides   +2 more
openaire   +1 more source