50 citations · 153 across the 13 of their papers we have counts for
13 papers
Time-Varying Wireless Power Transfer Systems for Improving Efficiency
X. Wang, I. Krois, N. Ha-Van +4
Conventional wireless power transfer systems are linear and time-invariant, which sets fundamental limitations on their performance, including a tradeoff between transfer efficienc…
Electromagnetic Effects in Anti-Hermitian Media with Gain and Loss
L. Freter, M. S. Mirmoosa, A. Sihvola +2
Incorporating both gain and loss into electromagnetic systems provides possibilities to engineer effects in unprecedented ways. Concerning electromagnetic effects in isotropic medi…
Time Interfaces in Bianisotropic Media
M. S. Mirmoosa, M. H. Mostafa, A. Norrman +1
Wave phenomena in bianisotropic media have been broadly scrutinized in classical electrodynamics, as these media offer additional degrees of freedom to engineer electromagnetic wav…
Effective Mid-Range Wireless Power Transfer with Compensated Radiation Loss
N. Ha-Van, C. R. Simovski, F. S. Cuesta +2
In conventional inductive wireless power devices, the energy is transferred via only reactive near fields, which is equivalent to non-radiative Förster energy transfer in optics. R…
Tutorial on basics of time-varying electromagnetic systems and circuits
G. Ptitcyn, M. S. Mirmoosa, A. Sotoodehfar +1
During the last decade, possibilities to realize new phenomena and create new applications by varying system properties in time have gained increasing attention in many research fi…
Antenna bandwidth engineering through time-varying resistance
M. H. Mostafa, N. Ha-Van, P. Jayathurathnage +3
Operational bandwidth of resonant circuits is limited by the resonator's size, which is known as the Chu limit. This limit restricts miniaturization of antennas, as the antenna ban…
Loss-induced performance limits of all-dielectric metasurfaces for terahertz sensing
J. A. Álvarez-Sanchis, B. Vidal, S. A. Tretyakov +1
Metasurfaces providing resonances arising from quasi-bound states in the continuum have been proposed as sensors in the THz band due to the existence of strong resonances character…
Emulating Bianisotropic Coupling Through Coherent Illumination
F. S Cuesta, M. S. Mirmoosa, S. A. Tretyakov
One of the main advantages of reciprocal bianisotropic metasurfaces is their capability to produce asymmetric scattering depending from which side they are illuminated and on the h…
Multi-functional metasurface architecture for amplitude, polarization and wavefront control
A. Pitilakis, M. Seckel, A. C. Tasolamprou +10
Metasurfaces (MSs) have been utilized to manipulate different properties of electromagnetic waves. By combining local control over the wave amplitude, phase, and polarization into…
Parametric Mie resonances and directional amplification in time-modulated scatterers
V. Asadchy, A. G. Lamprianidis, G. Ptitcyn +7
We provide a theoretical description of light scattering by a spherical particle whose permittivity is modulated in time at twice the frequency of the incident light. Such a partic…
Coherent Asymmetric Absorbers
F. S. Cuesta, A. D. Kuznetsov, G. A. Ptitcyn +2
Most applications of metasurfaces require excitation and control of both electric and magnetic surface currents. For such purpose, the metasurface must have a finite thickness to h…
Scattering from spheres made of time-varying and dispersive materials
G. Ptitcyn, A. G. Lamprianidis, T. Karamanos +8
Exploring the interaction of light with time-varying media is an intellectual challenge that, in addition to fundamental aspects, provides a pathway to multiple promising applicati…
Coherently time-varying metasurfaces
M. H. Mostafa, A. Diaz-Rubio, M. S. Mirmoosa +1
Known coherent metasurfaces control interference of waves of a given frequency with other coherent waves at the same frequency, either illuminating from a different direction or cr…