Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Tzarouchis, Dimitrios C."'
Autor:
Koutsoupidou, Maria, Tzarouchis, Dimitrios C., Rompolas, Dionysios, Sotiriou, Ioannis, Palikaras, George, Kosmas, Panagiotis
Wearable, implantable, and ingestible antennas are continuously evolving in biomedical applications, as they are crucial components in devices used for monitoring and controlling physiological parameters. This work presents an experimentally validate
Externí odkaz:
http://arxiv.org/abs/2404.10313
The ability to perform mathematical computations using metastructures is an emergent paradigm that carries the potential of wave-based analog computing to the realm of near-speed-of-light, low-loss, compact devices. We theoretically introduce and exp
Externí odkaz:
http://arxiv.org/abs/2301.02850
Wave-based analog computing in the forms of inverse-designed metastructures and the meshes of Mach-Zehnder interferometers (MZI) have recently received considerable attention due to their capability in emulating linear operators, performing vector-ma
Externí odkaz:
http://arxiv.org/abs/2207.13189
Autor:
Pascale, Mariano, Mann, Sander A., Tzarouchis, Dimitrios C., Miano, Giovanni, Alù, Andrea, Forestiere, Carlo
The problem of finding the optimal current distribution supported by small radiators yielding the minimum quality (Q) factor is a fundamental problem in electromagnetism. Q factor bounds constrain the maximum operational bandwidth of devices includin
Externí odkaz:
http://arxiv.org/abs/2107.11647
Autor:
Tzarouchis Dimitrios C., Koutsoupidou Maria, Sotiriou Ioannis, Dovelos Konstantinos, Rompolas Dionysios, Kosmas Panagiotis
Publikováno v:
EPJ Applied Metamaterials, Vol 11, p 7 (2024)
This mini-review examines the most prominent features and usages of metamaterials, such as metamaterial-based and metamaterial-inspired RF components used for biomedical applications. Emphasis is given to applications on sensing and imaging systems,
Externí odkaz:
https://doaj.org/article/8db1ec68d66f47aaa7f3a4d002338620
Publikováno v:
Phys. Rev. B 98, 235417 (2018)
With analytical (generalized Mie scattering) and numerical (integral-equation-based) considerations we show the existence of strong resonances in the scattering response of small spheres with lossless impedance boundary. With increasing size, these m
Externí odkaz:
http://arxiv.org/abs/1805.09159
Autor:
Tzarouchis, Dimitrios C., Sihvola, Ari
Publikováno v:
Phys. Rev. Applied 10, 054012 (2018)
In this work the polarizability of a subwavelength core-shell sphere is considered, where the shell exhibits a radially inhomogeneous permittivity profile. A mathematical treatment of the elec- trostatic polarizability is formulated in terms of the s
Externí odkaz:
http://arxiv.org/abs/1804.04629
In the present article the classical problem of electromagnetic scattering by a single homogeneous sphere is revisited. Main focus is the study of the scattering behavior as a function of the material contrast and the size parameters for all electric
Externí odkaz:
http://arxiv.org/abs/1702.05883
Autor:
Tzarouchis, Dimitrios C., Sihvola, Ari
This article presents and discusses the general features and aspects regarding the electromagnetic scattering by a small core-shell plasmonic sphere. First, the thickness effects on the plasmonic resonances are presented in the electrostatic (Rayleig
Externí odkaz:
http://arxiv.org/abs/1702.01620
Publikováno v:
Phys. Rev. B 94, 140301 (2016)
A classical way for exploring the scattering behavior of a small sphere is to approximate Mie coefficients with a Taylor series expansion. This ansatz delivered a plethora of insightful results, mostly for small spheres supporting localized plasmonic
Externí odkaz:
http://arxiv.org/abs/1606.05523