16 citations · 37 across the 7 of their papers we have counts for
8 papers
Static-to-dynamic field conversion in a temporally switched Lorentz medium
Alazar G. Salfore, Mario J. Mencagli
We investigate static-to-dynamic electromagnetic field conversion in a temporally switched Lorentz medium initially subjected to an electrostatic field. An abrupt change of the osc…
Aperiodic temporal modulation for distortionless broadband impedance matching beyond the Bode-Fano limit
Martin Olguin-Lopez, Dimitrios L. Sounas, Nader Engheta +2
The Bode-Fano bound sets a fundamental trade-off between bandwidth and reflection in passive, linear, time-invariant matching networks. We show that an aperiodically time-modulated…
Polarimetric compressed sensing with hollow, self-assembled diffractive films
Ji Feng, Altai J. Perry, Xiaojing Weng +4
Sensing light's polarization and wavefront direction enables surface curvature assessment, material identification, shadow differentiation, and improved image quality in turbid env…
A New Strategy for Designing Dual-band Antennas Based on Double-layer Metasurfaces
Kristy Hecht, Nacer Chahat, Goutam Chattopadhyay +2
We present a new strategy for the design of dual-band planar antennas based on metasurfaces (MTSs) in the microwave and millimeter-wave regimes. It is based on a double layer struc…
First-principles analysis of energy exchange in time-varying capacitors for energy trapping applications
Kristy Hecht, David González-Ovejero, Dimitrios L. Sounas +1
Time-varying networks, consisting of lumped elements, such as resistors, capacitors, and inductors, actively modulated in time, have introduced a host of novel wave phenomena and w…
Reconfigurable nonlinear optical element using tunable couplers and inverse-designed structure
Vahid Nikkhah, Mario Junior Mencagli, Nader Engheta
In recent years, wave-based analog computing has been at the center of attention for providing ultra-fast and power-efficient signal processing enabled by wave propagation through…
Mathematical Operations and Equation Solving with Reconfigurable Metadevices
Dimitrios Tzarouchis, Mario Junior Mencagli, Brian Edwards +1
Performing analog computations with metastructures is an emerging wave-based paradigm for solving mathematical problems. For such devices, one major challenge is their reconfigurab…
Static-to-dynamic field conversion with time-varying media
Mario Junior Mencagli, Dimitrios L. Sounas, Mathias Fink +1
In this Letter, we theoretically demonstrate that a uniform static electric field distribution can be partially converted to radiation fields when a portion of the medium undergoes…