Metamaterials and imaging

M Kim, J Rho - Nano Convergence, 2015 - Springer
Resolution of the conventional lens is limited to half the wavelength of the light source by
diffraction. In the conventional optical system, evanescent waves, which carry sub-diffraction …

Meta-atom microfluidic sensor for measurement of dielectric properties of liquids

RA Awang, FJ Tovar-Lopez, T Baum, S Sriram… - Journal of Applied …, 2017 - pubs.aip.org
High sensitivity microwave frequency microfluidic sensing is gaining popularity in chemical
and biosensing applications for evaluating the dielectric properties of liquid samples. Here …

Gradient index metasurface lens for microwave imaging

S Datta, A Tamburrino, L Udpa - Sensors, 2022 - mdpi.com
This paper presents the design, simulation and experimental validation of a gradient-index
(GRIN) metasurface lens operating at 8 GHz for microwave imaging applications. The unit …

Variable gradient refractive index engineering: design, growth and electro-deflective application of KTa 1− x Nb x O 3

H Tian, P Tan, X Meng, C Hu, B Yao, G Shi… - Journal of Materials …, 2015 - pubs.rsc.org
Gradient refractive index (GRIN) optical materials have received substantial attention
because of their applications in integrated imaging and fiber optics. The refractive index …

Metamaterial möbius strips (MMS): Tunable oscillator circuits

AK Poddar, UL Rohde, T Itoh - 2014 IEEE MTT-S International …, 2014 - ieeexplore.ieee.org
Manipulating and tailoring the electromagnetic wave properties, several impacts of
Metamaterials Möbius Strips (MMS) envisage, such as decrease in the size and suppression …

Broadband electromagnetic metamaterials with reconfigurable fluid channels

L Liu, AR Katko, D Li, SA Cummer - Physical Review B, 2014 - APS
We present the design, characterization, and experimental verification of broadband and
tunable metamaterials based on reconfigurable fluid channels. We demonstrate through …

Mechanically tunable and reconfigurable FSS using spring loaded ring resonators

SN Azemi, K Ghorbani… - 2013 European Microwave …, 2013 - ieeexplore.ieee.org
A mechanical tuning technique for architectures employing stacked ring resonators is
proposed. The stacked rings are separated by a plastic spring structure allowing the ring …

Tunable metamaterials

IV Shadrivov, DN Neshev - Singapore: World Scientific, 2017 - books.google.com
Metamaterials and metasurfaces are designed to exhibit various exotic properties and this is
often done by utilizing resonant phenomena. As a result, the electromagnetic response of …

Lumped-element models of THz metasurfaces based on split-ring resonators and their complementary form

GP Papari, JJJ Nivas, M Hu, S Amoruso… - Optics …, 2023 - opg.optica.org
Realistic lumped-element circuits describing split-ring resonator metasurfaces and their
complementary forms are presented. To consider the polarization dependence, we exploit …

Reconfigurable split-ring resonators using pneumatic levitation system

X Tang, IE Khodasevych… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
In this paper, a pneumatic levitation system is proposed to provide a contactless and metal
free platform for dynamically altering the structural arrangement of split-ring resonators in an …