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 …

Motivated by the demands of integrated and silicon photonics, there is significant interest in
optical isolators in on-chip integrated systems. Recent works have therefore explored …

One-way propagation of light, analogous to the directional flow of electrons in the presence
of electric potential difference, has been an important goal in the wave–matter interaction …

Photonic methods of radio-frequency waveform generation and processing can provide
performance advantages and flexibility over electronic methods due to the ultrawide …

Optical non-reciprocity possesses a broad range of applications in the design of optical
diodes, insulators, circulators, and logical devices. A conventional method to realize optical …

Temporal coupled-mode theory (CMT) is an acclaimed and widely used theoretical
framework for modeling the continuous-wave response and temporal dynamics of any …

We present a programmable silicon photonic integrated circuit (PIC) that can be configured
to show nonlinear nonreciprocal transmission at high optical input power. Nonreciprocal …

A passive all-silicon optical diode is demonstrated to realize a record high nonreciprocal
transmission ratio (NTR) of 40 dB. Individual microrings that make up the device are …

The results of a study of the nonlinear frequency response of a silicon micro-ring resonator
(MRR) manufactured using silicon-on-insulator technology are presented. Appearance of …

We experimentally demonstrate the nonreciprocal microwave amplification using a cavity
magnonic system, consisting of a passive cavity (ie, the split-ring resonator), an active …