As a fundamental optical approach to interferometry, Sagnac interference has been widely
used for reflection manipulation, precision measurements, and spectral engineering in …

Non-Hermitian optics is a burgeoning field at the intersection of quantum physics,
electrodynamics, and nanophotonics. It provides a new perspective of the role of gain and …

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 …

A recent renaissance in Brillouin scattering research has been driven by the increasing
maturity of photonic integration platforms and nanophotonics. The result is a new breed of …

The commercial success of radio-frequency acoustic filters in wireless communication
systems has launched aluminum nitride (AlN) as one of the most widely used …

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

Non-reciprocal devices, such as circulators and isolators, are indispensable components in
classical and quantum information processing in integrated photonic circuits. Aside from …

Electromagnetically induced transparency, as a quantum interference effect to eliminate
optical absorption in an opaque medium, has found extensive applications in slow-light …

Mechanical degrees of freedom, which have often been overlooked in various quantum
systems, have been studied for applications ranging from quantum information processing to …

Nonreciprocal components, such as isolators and circulators, provide highly desirable
functionalities for optical circuitry. This motivates the active investigation of mechanisms that …