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Planar Metasurface Antenna with Tunable via Boundaries for Computational Imaging
Toufiq M. Hossain, Andrey E. Miroshnichenko, David A. Powell
The fusion of metasurface antennas and computational imaging facilitates the design of microwave imaging systems which require no lenses, phase shifters or moving parts. The techni…
Ultra-Efficient DC-gated all-optical graphene switch
Mohammed Alaloul, Khalil As'ham, Haroldo T. Hattori +1
The ultrafast response and broadband absorption of all-optical graphene switches are highly desirable features for on-chip photonic switching. However, because graphene is an atomi…
On the existence of pure, broadband toroidal sources in electrodynamics
Adrià Canós Valero, Dmitrii Borovkov, Mikhail Sidorenko +6
Multipoles are paramount for describing electromagnetic fields in many areas of nanoscale optics, playing an essential role for the design of devices in plasmonics and all-dielectr…
Degenerate bound states in the continuum in square and triangular open acoustic resonators
Almas Sadreev, Evgeny Bulgakov, Artem Pilipchuk +2
We consider square and equilateral triangular open acoustic resonators with the and symmetries, respectively. There is an unique property of square and triangular…
A General Framework of Bound States in the Continuum in an Open Acoustic Resonator
Lujun Huang, Bin Jia, Artem S Pilipchuk +11
Bound states in the continuum (BICs) provide a viable way of achieving high-Q resonances in both photonics and acoustics. In this work, we proposed a general method of constructing…
Topological Supercavity Resonances In the Finite System
Lujun Huang, Bin Jia, Yan Kei Chiang +7
Acoustic resonant cavities play a vital role in modern acoustical systems. They have led to many essential applications for noise control, biomedical ultrasonics, and underwater co…