47 citations · 90 across the 7 of their papers we have counts for
6 papers · 1 filter
Designing Topological Defect Lines Protected by Gauge-dependent Symmetry Indicators
Erda Wen, Dia'aaldin J. Bisharat, Robert J. Davis +2
Symmetry indicators are a modern tool for characterizing topological phases that require only minimal computational expense but provide an elegant means of designing practical devi…
Broadband time-modulated absorber beyond the Bode-Fano limit by energy trapping
Xiaozhen Yang, Erda Wen, Daniel F. Sievenpiper
Wide-band absorption is a popular topic in microwave engineering to protect sensitive devices against broadband sources. However, the Bode-Fano criterion defines the trade-off betw…
Classical-to-Topological Transmission Line Couplers
Robert J. Davis, Dia'aaldin J. Bisharat, Daniel F. Sievenpiper
Recent advances in topologically robust waveguiding for electromagnetic systems have presented opportunities for improving practical photonic and microwave devices. To bring this r…
Confining and channeling sound through coupled resonators
Yun Zhou, Prabhakar R. Bandaru, Daniel F. Sievenpiper
Confining sound is of significant importance for the manipulation and routing acoustic waves. We propose a Helmholtz resonator (HR) based subwavelength sound channel formed at the…
Waveform Selective Surfaces
Hiroki Wakatsuchi, Jiang Long, Daniel F. Sievenpiper
The role of frequency is very important in electromagnetics since it may significantly change how a material interacts with an incident wave if the frequency spectrum varies. Here,…
Electron emission by long and short wavelength lasers: essentials for the design of plasmonic photocathodes
Ebrahim Forati, Dan Sievenpiper
Theory of electron emission by metallic photocathodes under the exposure of long wavelength lasers will be studied. Energy of photons in long wavelength lasers is less than the wor…