Results 41 to 50 of about 190,886 (342)

Design of Chemically Recyclable Nanocellulose Chiral Liquid Crystal Photonic Elastomer Vitrimer and its Mechanosensitive Colour-changing Materials

BioResources, 2023
The development of nanocellulose (CNCs) chiral liquid crystal photonic elastomeric vitrimer materials is promising for achieving needed reduction in carbon emissions (elastomer material recycling) and developing novel photonic functional materials.
Jinlong Zhang, Weiguo Li, Qinglin Wu
doaj   +2 more sources

Graphene-based photonic crystal

, 2010
A novel type of photonic crystal formed by embedding a periodic array of constituent stacks of alternating graphene and dielectric discs into a background dielectric medium is proposed.
Anton A. Kolesnikov, Berman, Berman, Berman, Castro Neto, Chigrin, Das Sarma, Eldada, Falkovsky, Falkovsky, Falkovsky, Gusynin, Gusynin, Joannopoulos, Joannopoulos, John, Katsnelson, Kechedzhi, Kuzmiak, Landau, Lozovik, Luk'yanchuk, McGurn, Nair, Nomura, Novoselov, Novoselov, Oleg L. Berman, Roman Ya. Kezerashvili, Taflove, Takeda, Takeda, Takeda, Tőke, Ulrich, Vladimir S. Boyko, Yablonovitch, Yurii E. Lozovik, Zhang, Zhang   +39 more
core   +1 more source

Entangling Atoms in Photonic Crystals [PDF]

, 1999
We propose a method for entangling a system of two-level atoms in photonic crystals. The atoms are assumed to move in void regions of a photonic crystal. The interaction between the atoms is mediated either via a defect mode or via resonant dipole-dipole
Buzek, Vladimir, Konopka, Martin
core   +2 more sources

Extremal transmission through a microwave photonic crystal and the observation of edge states in a rectangular Dirac billiard

, 2011
This article presents experimental results on properties of waves propagating in an unbounded and a bounded photonic crystal consisting of metallic cylinders which are arranged in a triangular lattice. First, we present transmission measurements of plane
Bittner, S., Dietz, B., Miski-Oglu, M., Richter, A.   +3 more
core   +1 more source

Efficient excitation of self-collimated beams and single Bloch modes in planar photonic crystals [PDF]

, 2003
Using finite-difference time-domain calculations, we investigate out-of-plane coupling between a square-lattice planar photonic crystal and a conventional waveguide located above the photonic crystal.
Scherer, Axel, Witzens, Jeremy
core   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Higher-order modes excitation in generator with photonic crystal

Results in Physics, 2019
We revealed physical processes responsible for the excitation of higher-order modes in volume free-electron laser with photonic crystal. We discovered the new approach for the selection of the electromagnetic modes in volume free-electron laser with ...
Artem A. Badarin, Semen A. Kurkin, Nikita S. Frolov, Alexey A. Koronovskii, Alexander E. Hramov, Alexey O. Rak   +5 more
doaj   +1 more source

Pneumatic photonic crystals

Optics Express, 2010
We theoretically study a 1D elastic photonic crystal containing air voids as an opto-pneumatic medium. This medium is sensitive to weak deviations of the external pressure and, owing to its elasticity, can vary its geometry depending on the external conditions.
openaire   +2 more sources

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

Advanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger, Anna Mauri, Yang Cui, Sebastian Josef Weishäupl, Ali Deniz Özdemir, Hamad Syed, Aleksandr Ovsianikov, Wolfgang Wenzel, Alexander Pöthig, Jürgen Hauer, Mariana Kozlowska, Roland Augustinus Fischer   +11 more
wiley   +1 more source

Optical Kossel Lines and Fluorescence in Photonic Liquid Crystals

Crystals, 2020
We propose a general analytical way to describe the fluorescence peculiarities in photonic liquid crystals (revealing themselves as an optical analog of the X-ray Kossel lines in conventional crystals) based at the localized optical edge modes existing ...
Vladimir A. Belyakov
doaj   +1 more source