Results 71 to 80 of about 842,343 (263)

Transient behavior of wind towers grounding systems under lightning strikes [PDF]

, 2015
Wind turbines, because of their height and localization, are frequently subject to direct lightning strikes. Thus, the investigation on the performance of their grounding system is of paramount interest for the prediction of the potential threats either ...
ARANEO, Rodolfo, CELOZZI, Salvatore
core   +1 more source

The Influence of the Supporting Substrate on Single‐Particle Circular Differential Scattering of DNA Assembled Nanorod Dimers

Advanced Optical Materials, EarlyView.
For most microscopy measurements the sample is placed on a substrate, which causes symmetry breaking, especially relevant for chiral plasmonic nanostructures. DNA origami mediated X‐shaped AuNR dimers showing high structural purity in solution, exhibit significant diversity in lineshapes and signal intensities for their circular differential scattering
Amrita Chakraborty, Ojasvi Verma, Gopal Narmada Naidu, Mihir Dass, Zhenyang Jia, Christy F. Landes, Alessandro Alabastri, Peter Nordlander, Tim Liedl, Stephan Link   +9 more
wiley   +1 more source

Practical Attacks Against Graph-based Clustering

, 2017
Graph modeling allows numerous security problems to be tackled in a general way, however, little work has been done to understand their ability to withstand adversarial attacks.
Bayer Ulrich, Benczúr Miklós, Carlini Nicholas, Chen Yizheng, Chen Yizheng, Hao Shuang, Invernizzi Luca, Li Zhou, Nadji Yacin, Nelms Terry, Nelms Terry, Papernot Nicolas, Perdisci Roberto, Polo Chau Duen Horng, Rahbarinia Babak, Rndic Nedim, Sivakorn Suphannee, Smutz Charles, Sun Jimeng, Wagner David   +19 more
core   +1 more source

Fabrication and coupling to planar high-Q silica disk microcavities [PDF]

, 2003
Using standard lithographic techniques, we demonstrate fabrication of silica disk microcavities, which exhibit whispering-gallery-type modes having quality factors (Q) in excess of 1 million.
Armani, D. K., Kippenberg, T. J., Spillane, S. M., Vahala, K. J.   +3 more
core   +1 more source

Toward Enhancing Chiro‐Optical and Magneto‐Optical Properties of Magnetic Nanocrystals by Surface Plasmons

Advanced Optical Materials, EarlyView.
Here, recent progress is highlighted in colloidal magnetoplasmonic hybrid nanomaterials, with a focus on chiral plasmonics. Metal nanocrystals with intrinsic chiroptical features can lead to a combination of chiral plasmonics and magneto‐optics effects when interacting with the magnetic counterpart, offering a foundation for systematically designing ...
Miguel Comesaña‐Hermo, Eloi Haltz, Alessio Gabbani, Francesco Pineider, Verónica Salgueiriño   +4 more
wiley   +1 more source

Room‐Temperature Surface Exciton Polaritons in Colloidal J‐Aggregate Flakes

Advanced Optical Materials, EarlyView.
Colloidal J‐aggregate flakes, synthesized via electrostatic assembly of cyanine molecules and a polyelectrolyte, exhibit robust excitonic properties and support surface exciton polaritons at room temperature. Their strong scattering and tunable optical response introduce a versatile, solution‐processable platform for advanced photonic and quantum ...
Carla Estévez‐Varela, José N. Gama, Miguel Castillo, Adelaide Miranda, Pieter A.A. De Beule, Jorge Pérez‐Juste, Martin Lopez‐Garcia, Isabel Pastoriza‐Santos, Sara Núñez‐Sánchez   +8 more
wiley   +1 more source

Non‐Hermitian Topological Lattice Photonics: An Analytic Perspective

Advanced Photonics Research, EarlyView.
This review establishes exact analytical solutions for non‐Hermitian Hatano–Nelson, Su–Schrieffer–Heeger, and generalized Rice–Mele models. We demonstrate non‐Hermitian skin effects via point‐gap topology, hybrid skin‐topological edge states in 2D lattices, and spin‐polarized boundary modes governed by dual bulk‐boundary correspondence.
Shihua Chen, Abdul Basit, Lingfang Li, Chong Hou, Yang Ruan, Yating Wei, Zhenhua Ni   +6 more
wiley   +1 more source

Superconducting nanowire photon number resolving detector at telecom wavelength

, 2007
The optical-to-electrical conversion, which is the basis of optical detectors, can be linear or nonlinear. When high sensitivities are needed single-photon detectors (SPDs) are used, which operate in a strongly nonlinear mode, their response being ...
A Korneev, AD Semenov, AJ Kerman, AJ Miller, Aleksander Divochiy, Alessandro Gaggero, Alexander Korneev, Andrea Fiore, BE Kardynal, C Simon, D Achilles, D Rosenberg, David Bitauld, E Knill, E Waks, E Waks, EA Dauler, EJ Gansen, F Mattioli, Francesco Marsili, Francesco Mattioli, Francis Lévy, G Gol'tsman, G Zambra, GN Gol'tsman, GN Gol'tsman, Gregory Gol'tsman, H Lee, K Yamamoto, KM Rosfjord, Konstantinos G. Lagoudakis, LA Jiang, M Fujiwara, MJ Fitch, Moushab Benkhaoul, Nataliya Kaurova, Olga Minaeva, RJ McIntyre, Roberto Leoni, Vitaliy Seleznev   +39 more
core   +1 more source

Numerical and Experimental Methods for Estimating the Propagation Loss in Microphotonic Waveguides

Advanced Photonics Research, EarlyView.
Finite‐element finite‐difference time domain, eigenmode‐expansion, and volume‐current simulations are benchmarked against cut‐back, ring‐resonator, and OFDR measurements to quantify waveguide propagation loss in integrated photonic circuits. Scattering, absorption, leakage, and back‐reflection contributions are dissected; error sources are ranked; and ...
Francesco Dell’Olio, Samuel M. Hörmann, Teresa Natale, Roel Baets, Alexander Bergmann   +4 more
wiley   +1 more source

Methodology for Topological Interface Engineering in 2D Photonic Crystals

Advanced Photonics Research, EarlyView.
This article introduces an automated framework for topological photonic crystal design. It features an iterative band connection method for identifying band crossings, a data‐driven approach for band symmetry recognition, and analysis of how topological mode dispersion trades off with photonic band‐gap size.
Ondřej Novák, Gervasi Herranz, Martin Veis   +2 more
wiley   +1 more source