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A reflective mm-wave photonic limiter
Rodion Kononchuk, Suwun Suwunnarat, Martin S. Hilario +6
Millimeter wave (mm-wave) communications and radar receivers capable of processing small signals must be protected from high-power signals, which can damage sensitive receiver comp…
Universal Route for the Emergence of Exceptional Points in PT-Symmetric Metamaterials with Unfolding Spectral Symmetries
Yanghao Fang, Tsampikos Kottos, Ramathasan Thevamaran
We introduce a class of Parity-Time symmetric elastodynamic metamaterials (Ed-MetaMater) whose Hermitian counterpart exhibits a frequency spectrum with unfolding (fractal) symmetri…
Extreme Non-Reciprocal Near-Field Thermal Radiation via Floquet Photonics
Lucas J. Fernández-Alcázar, Huanan Li, Tsampikos Kottos
By utilizing Floquet driving protocols and interlacing them with a judicious reservoir emission engineering we achieve extreme non-reciprocal thermal radiation. We show that the la…
Non-Hermitian CT-Symmetric Spectral Protection of Nonlinear Defect Modes
Do Hyeok Jeon, Mattis Reisner, Fabrice Mortessagne +2
We investigate, using a microwave platform consisting of a non-Hermitian Su-Schrieffer-Heeger array of coupled dielectric resonators, the interplay of a lossy nonlinearity and CT-s…
Orientation-sensed Optomechanical Accelerometers based on Exceptional Points
Rodion Kononchuk, Tsampikos Kottos
We propose an optomechanical design, consisting of a parity-time symmetric multilayer structure tuned at exceptional-point degeneracy (EPD), with an adjustable layer that is couple…