Recent decades have seen significant advancements in integrated photonics, driven by
improvements in nanofabrication technology. This field has been developed from integrated …

Integrated photonics enables signal synthesis, modulation and conversion using photonic
integrated circuits (PICs). Many materials have been developed, among which silicon nitride …

Optical isolators today are exclusively built on magneto-optic principles but are not readily
implemented within photonic integrated circuits. So far, no magnetless alternative …

Integrated photonic devices based on Si3N4 waveguides allow for the exploitation of
nonlinear frequency conversion, exhibit low propagation loss, and have led to advances in …

We present an infrared thermal emitter that exhibits unequal emissivity and absorptivity for a
given frequency and angle of incidence, violating Kirchhoff's law of thermal radiation. We …

Nonreciprocal components, such as isolators and circulators, are crucial components for
photonic systems. In this article, we review theoretical and experimental progress toward …

We propose an integrated photonic approach to generating guided space-time wave
packets in a conventional multimode waveguide using multilevel interband photonic …

Space-time modulation adds another powerful degree of freedom to the manipulation of
classical wave systems. It opens the door for complex control of wave behavior beyond the …

Optical isolators and circulators are critical building blocks for large-scale photonic
integrated circuits. Among the several methods proposed to realize such nonreciprocal …

We develop theoretical and computational formalisms to describe thermal radiation from
temporally modulated systems. We show that such a modulation results in a photon-based …