Results 41 to 50 of about 114,262 (333)
The negative index of refraction demystified
, 2002 We study electromagnetic wave propagation in mediums in which the effective relative permittivity and the effective relative permeability are allowed to take any value in the upper half of the complex plane.
Akhlesh Lakhtakia +5 more
core +2 more sources
Zero reflection and transmission in graded index media [PDF]
, 2016 Graded index media whose electric susceptibility satisfies the spatial Kramers-Kronig relations are known to be one-way reflectionless to electromagnetic radiation, for all angles of incidence.
Horsley, Simon +2 more
core +2 more sources
Cloaking of Arbitrarily-Shaped Objects with Homogeneous Coatings
, 2014 We present a theory for the cloaking of arbitrarily-shaped objects and demonstrate electromagnetic scattering-cancellation through designed homogeneous coatings.
Forestiere, Carlo +2 more
core +1 more source
Bidirectional invisibility in Kramers-Kronig optical media
, 2016 A broad class of planar dielectric media with complex permittivity profiles that are fully invisible, for both left and right incidence sides, is introduced.
Longhi, Stefano
core +1 more source
Advanced Functional Materials, EarlyView.In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund +6 more
wiley +1 more source
High Frequency Electromagnetic Shielding by Biochar-Based Composites
Nanomaterials, 2021 We report on the microwave shielding efficiency of non-structural composites, where inclusions of biochar—a cost effective and eco-friendly material—are dispersed in matrices of interest for building construction.
Daniele Torsello +7 more
doaj +1 more source
Separable metamaterials: analytical ab-initio homogenization and chirality
, 2016 We investigate the ab-initio homogenization of separable metamaterials with factorized dielectric permittivity profile which can be achieved through suitable grey-scale permittivity design techniques.
Ciattoni, Alessandro +2 more
core +1 more source
Performance of Electrical Spectroscopy using a Resper Probe to Measure the Salinity and Water Content of Concrete or Terrestrial Soil [PDF]
, 2011 This paper discusses the performance of electrical spectroscopy using a RESPER probe to measure the salinity s and volumetric content {\theta}W of the water in concrete or terrestrial soil.
Settimi, A.
core +4 more sources
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
Complex Permittivity to Detect Lead in Soil with Various Salt Forms and Combinations
MATEC Web of Conferences, 2017 The response of soil-water systems to an external electric field can be described as polarization and conduction. Polarization represents the electric charges stored in a material, whereas conduction is the ability of a material to conduct free charges ...
Al Martini Samer, Shang Julie Q.
doaj +1 more source