1.7k citations · 9.9k across the 96 of their papers we have counts for
57 papers · 1 filter
Holding and amplifying electromagnetic waves with temporal non-Foster metastructures
Victor Pacheco-Peña, Yasaman Kiasat, Diego M. Solís +2
We introduce a mechanism that can both hold and amplify electromagnetic waves by rapidly changing the permittivity of the medium during the wave travel from a positive to a dispers…
Inverse-designed low-index-contrast structures on silicon photonics platform for vector-matrix multiplication
Vahid Nikkhah, Ali Pirmoradi, Farshid Ashtiani +3
Inverse-designed Silicon photonic metastructures offer an efficient platform to perform analog computations with electromagnetic waves. However, due to computational difficulties,…
Roadmap on structured waves
K. Y. Bliokh, E. Karimi, M. J. Padgett +47
Structured waves are ubiquitous for all areas of wave physics, both classical and quantum, where the wavefields are inhomogeneous and cannot be approximated by a single plane wave.…
Multiple actions of time-resolved short-pulsed metamaterials
Giuseppe Castaldi, Carlo Rizza, Nader Engheta +1
Recently, it has been shown that temporal metamaterials based on impulsive modulations of the constitutive parameters (of duration much smaller than a characteristic electromagneti…
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…
Inverse-designed Metastructures Together with Reconfigurable Couplers to Compute Forward Scattering
Vahid Nikkhah, Dimitrios C. Tzarouchis, Ahmad Hoorfar +1
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 t…