Wireless communications and applications above 100 GHz: Opportunities and challenges for 6G and beyond
Frequencies from 100 GHz to 3 THz are promising bands for the next generation of wireless
communication systems because of the wide swaths of unused and unexplored spectrum …
communication systems because of the wide swaths of unused and unexplored spectrum …
Non-reciprocal photonics based on time modulation
Reciprocity is a fundamental principle in optics, requiring that the response of a transmission
channel is symmetric when source and observation points are interchanged. It is of major …
channel is symmetric when source and observation points are interchanged. It is of major …
Electromagnetic nonreciprocity
We aim at providing a global perspective on electromagnetic nonreciprocity and clarifying
confusions that arose in recent developments of the field. We provide a general definition of …
confusions that arose in recent developments of the field. We provide a general definition of …
Tutorial on electromagnetic nonreciprocity and its origins
This tutorial provides an intuitive and concrete description of the phenomena of
electromagnetic nonreciprocity that will be useful for readers with engineering or physics …
electromagnetic nonreciprocity that will be useful for readers with engineering or physics …
Fully integrated parity–time-symmetric electronics
Harnessing parity–time symmetry with balanced gain and loss profiles has created a variety
of opportunities in electronics from wireless energy transfer to telemetry sensing and …
of opportunities in electronics from wireless energy transfer to telemetry sensing and …
Serrodyne frequency translation using time-modulated metasurfaces
Temporally modulated metamaterials have attracted significant attention recently due to their
nonreciprocal and frequency converting properties. Here, a transparent, time-modulated …
nonreciprocal and frequency converting properties. Here, a transparent, time-modulated …
Broadband passive isolators based on coupled nonlinear resonances
Isolators are devices that transmit waves only in one direction, and are widely used to
protect sensitive equipment from reflections and interference. These devices inherently …
protect sensitive equipment from reflections and interference. These devices inherently …
Metamaterial, plasmonic and nanophotonic devices
The field of metamaterials has opened landscapes of possibilities in basic science, and a
paradigm shift in the way we think about and design emergent material properties. In many …
paradigm shift in the way we think about and design emergent material properties. In many …
Microwave nonreciprocity
In this article, we provide a comprehensive review of past and present efforts in the field of
microwave nonreciprocity with an emphasis on the most commonly used nonreciprocal …
microwave nonreciprocity with an emphasis on the most commonly used nonreciprocal …
Chip-scale Floquet topological insulators for 5G wireless systems
Floquet topological insulators, which have an exotic topological order sustained by time-
varying Hamiltonians, could be of use in a range of technologies, including wireless …
varying Hamiltonians, could be of use in a range of technologies, including wireless …