Results 111 to 120 of about 62,036 (292)

One-Dimensional Photonic Crystal Superprisms [PDF]

Theoretical calculations indicate that it should be possible for one-dimensional (1D) photonic crystals (see figure) to exhibit giant dispersions known as the superprism effect.
Ting, David
core   +1 more source

Voltage-induced defect mode interaction in a one-dimensional photonic crystal with a twisted-nematic defect layer

, 2011
Defect modes are investigated in a band gap of an electrically tunable one-dimensional photonic crystal infiltrated with a twisted-nematic liquid crystal (1D PC/TN).
Arkhipkin, Vasily G., Gunyakov, Vladimir A., Lee, Wei, Lin, Yu-Ting, Myslivets, Sergey A., Timofeev, Ivan V., Vetrov, Stepan Ya., Zyryanov, Victor Ya.   +7 more
core   +1 more source

Multiband negative refraction in one-dimensional photonic crystals

Optics Express, 2009
We simulate a lossless one-dimensional photonic crystals (1DPC) structure and show that negative refraction could be present near the low frequency edge of at least the second, fourth and sixth bandgaps. We experimentally demonstrate for the first time negative refraction in strongly modulated porous silicon 1D-PC in the visible and near infrared ...
J E, Lugo, B, de la Mora, R, Doti, R, Nava, J, Tagueña, A, Del Rio, J, Faubert   +6 more
openaire   +2 more sources

Triply‐Twinned Metamaterials: Unraveling the Mechanics and Failure Pathways Through High‐Resolution XCT

Advanced Materials, EarlyView.
Triply‐twinned architected lattices transform deformation from bending to stretching of struts, delivering up to threefold increases in stiffness and strength across polymeric and metallic systems. High‐resolution synchrotron XCT and image‐based simulations reveal how meta‐grain architecture, defects, and AM build orientation govern failure pathways ...
David McArthur, George Maddison, Jaianth Vijayakumar, Paul Tafforeau, Kathy Christofidou, Peter David Lee, PJ Tan, Chu Lun Alex Leung   +7 more
wiley   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

Advanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti, Carla Boix‐Constant, Iván Gómez‐Muñoz, Diego López‐Alcalá, Sergio Revuelta, Marco Ballabio, Vasileios Balos, José J. Baldoví, Enrique Cánovas, Josep Canet‐Ferrer, Guillermo Mínguez Espallargas, Samuel Mañas‐Valero, Eugenio Coronado   +12 more
wiley   +1 more source

Selenic acid anodizing of aluminium for preparation of 1D photonic crystals

Electrochemistry Communications, 2019
Anodizing of aluminium under oscillating conditions is a reproducible, scalable, and low-cost method for the preparation of one-dimensional photonic crystals with photonic band gaps in the visible and near-infrared regions. For this purpose, sulfuric and
A.I. Sadykov, S.E. Kushnir, I.V. Roslyakov, A.E. Baranchikov, K.S. Napolskii   +4 more
doaj   +1 more source

Control of the chemiluminescence spectrum with porous Bragg mirrors

, 2014
Tunable, battery free light emission is demonstrated in a solid state device that is compatible with lab on a chip technology and easily fabricated via solution processing techniques.
Criante, Luigino, Di Fonzo, Fabio, Lanzani, Guglielmo, Passoni, Luca, Sarduy, Eduardo Aluicio, Scotognella, Francesco, Varo, Simone, Vedove, Andrea Delle   +7 more
core   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

Advanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Calculation of atomic spontaneous emission rate in 1D finite photonic crystal with defects

, 2009
We derive the expression for spontaneous emission rate in finite one-dimensional photonic crystal with arbitrary defects using the effective resonator model to describe electromagnetic field distributions in the structure. We obtain explicit formulas for
A. Rudziński, A. Rudziński, A. Rudziński, A. Rudziński, A. Rudziński, A. Rudziński, A. S. Sánchez, Adam Rudziński, C. Creatore, C. K. Carniglia, Ch. Hooijer, D. N. Chigrin, E. M. Purcell, F. Martini de, H. Benisty, H. Hammer, H. Rigneault, H.-Y. Lee, I. Białynicki-Birula, J. Muszalski, J. N. Winn, J. W. Strutt, K. Nishioka, M. Bugajski, M. D. Tocci, P. Goy, P. Meystre, P. Vries de, P. Yeh, P. Yeh, Paweł Szczepański, R. J. Glauber, S. Bastonero, W. Lukosz, W. Żakowicz, Z. Białynicka-Birula, Z. H. Wang   +36 more
core   +1 more source

2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems

Advanced Materials, EarlyView.
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley   +1 more source