Results 91 to 100 of about 4,454,501 (383)
Refractive index less than two: photonic nanojets yesterday, today and tomorrow [Invited]
, 2017 Materials with relatively small refractive indices ...
B. Luk’yanchuk +4 more
semanticscholar +1 more source
Double Helical Plasmonic Antennas
Advanced Functional Materials, EarlyView.Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin +7 more
wiley +1 more source
Studying Focusing Properties of Graded Index Photonic Crystals Made of Material with Different Refractive Index [PDF]
Journal of Optoelectronical Nanostructures, 2017 In this paper we investigate focusing properties of graded index (GRIN) photonic crystal (PC) structures which are composed of different materials with different refractive indices. GRIN PC structure is constructed from air holes in dielectric background.
Nasrin Miri, Abdolrasoul Gharaati
doaj
Observation of acoustic Dirac-like cone and double zero refractive index
Nature Communications, 2017 Zero index materials where sound propagates without phase variation, holds a great potential for wavefront and dispersion engineering. Recently explored electromagnetic double zero index metamaterials consist of periodic scatterers whose refractive index
Marc Dubois +4 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán +13 more
wiley +1 more source
Tecnura, 2017 Objectives: The present study focused on the development of a optic fiber sensor for carbon dioxide (CO2), the measuring of variations of the refractive index of a CO2 medium undergoing controlled changes of temperature and pressure, and comparing this ...
María Angélica Acosta Pérez +2 more
doaj
Numerical modelling of light propagation in surface plasmon resonance sensor with liquid crystal
Condensed Matter Physics, 2018 The five-layer nanorod-mediated surface plasmon sensor with inhomogeneous liquid crystal layer was theoretically investigated. The reflectance as the function of the incident angle was calculated at different voltages applied to the liquid crystal (LC ...
Ye.S. Yarmoshchuk +2 more
doaj +1 more source
Gradient-index Solar Sail and its Optimal Orbital Control
, 2019 Solar sails with the capability of generating a tangential radiation pressure at the sun-pointing attitude, such as refractive sails can provide more efficient methods for attitude and orbital control of sailcraft.
Firuzi, Shahin +2 more
core
Tunable transmission and bistability in left-handed bandgap structures
, 2004 We study the defect-induced nonlinear transmission of a periodic structure created by alternating slabs of two materials with positive and negative refractive index.
Ilya V. Shadrivov +3 more
core +1 more source
Italian National Conference on Sensors, 2017 In this paper; the surface plasmon resonance (SPR) sensor with a porous silica film was studied. The effect of the thickness and porosity of the porous silica film on the performance of the sensor was analyzed.
Qing-Qing Meng +5 more
semanticscholar +1 more source