27 citations · 79 across the 11 of their papers we have counts for
4 papers · 1 filter
Chiral terahertz lasing with Berry curvature dipoles
Amin Hakimi, Kasra Rouhi, Tatiana G. Rappoport +2
Materials with Berry curvature dipoles (BDs) support a non-Hermitian electro-optic (EO) effect that is investigated here for lasing at terahertz (THz) frequencies. Such a system is…
Simple Reciprocal Electric Circuit Exhibiting Exceptional Point of Degeneracy
Kasra Rouhi, Filippo Capolino, Alexander Figotin
An exceptional point of degeneracy (EPD) occurs when both the eigenvalues and the corresponding eigenvectors of a square matrix coincide and the matrix has a nontrivial Jordan bloc…
Parametric Modeling of Serpentine Waveguide Traveling Wave Tubes
Kasra Rouhi, Robert Marosi, Tarek Mealy +2
A simple and fast model for numerically calculating small-signal gain in serpentine waveguide traveling-wave tubes (TWTs) is described. In the framework of the Pierce model, we con…
Time Modulation to Manage and Increase the Power Harvested From External Vibrations
Alireza Nikzamir, Kasra Rouhi, Alexander Figotin +1
We investigate how a single resonator with a time-modulated component extracts power from an external ambient source. However, the collected power is largely dependent on the preci…