Dynamic Nonreciprocity in Loss-Compensated Piezophononic Media

Loss-compensated broadband epsilon-near-zero metamaterials with gain media

Loss-compensated and active hyperbolic metamaterials.

We have studied the dispersion relations of multilayers of silver and a dye-doped dielectric using four methods: standard effective-medium theory (EMT), nonlocal-effect-corrected EMT, nonlinear equations based on the eigenmode method, and a spatial harmonic analysis method. We compare the validity of these methods and show that metallic losses can be greatly compensated by saturated gain. Two r...

sensorineural hearing loss in chronic otitis media

introduction: conductive hearing loss due to chronic otitis media (com) can be treated by surgery. com, however, may be associated with functional damage to the inner ear. sensorineural hearing loss (snhl) due to com has been found to be significant by some authors, whereas it has been considered negligible by others. the present study aimed to answer the question does com cause snhl ? methods:...

Dynamic Uncertainty for Compensated Second-Order Systems

The compensation of LTI systems and the evaluation of the according uncertainty is of growing interest in metrology. Uncertainty evaluation in metrology ought to follow specific guidelines, and recently two corresponding uncertainty evaluation schemes have been proposed for FIR and IIR filtering. We employ these schemes to compare an FIR and an IIR approach for compensating a second-order LTI s...

What is Nonreciprocity? – Part II

This paper is the second part of a two-part paper on Electromagnetic (EM) Nonreciprocity (NR). Part I has given a general definition of NR, pointed out that linear NR is a stronger form of NR than nonlinear (NL) NR, explained EM Time-Reversal (TR) Symmetry (TRS) Breaking (TRS-B), described linear Time-Invariant (TI) NR media, generalized the Lorentz reciprocity theorem for NR, and provided a ph...