Lithium niobate (LN), an outstanding and versatile material, has influenced our daily life for
decades—from enabling high-speed optical communications that form the backbone of the …

The quest towards the integration of ultra-fast, high-precision optical clocks is reflected in the
large number of high-impact papers on the topic published in the last few years. This interest …

The physics of a photonic structure is commonly described in terms of its apparent geometric
dimensionality. On the other hand, with the concept of synthetic dimension, it is in fact …

High-and ultrahigh-Q whispering-gallery mode resonators have the capability to trap
photons by total internal reflection for a duration ranging from nanoseconds to milliseconds …

Photonic integrated circuits (PICs) based on lithographically patterned waveguides provide
a scalable approach for manipulating photonic bits, enabling seminal demonstrations of a …

Quantum information technology based on solid state qubits has created much interest in
converting quantum states from the microwave to the optical domain. Optical photons, unlike …

Time crystals are periodic states exhibiting spontaneous symmetry breaking in either time-
independent or periodically-driven quantum many-body systems. Spontaneous modification …

The stabilization and manipulation of laser frequency by means of an external cavity are
nearly ubiquitously used in fundamental research and laser applications. While most of the …

Time-delayed optoelectronic oscillators are at the center of a large body of scientific
literature. The complex behavior of these nonlinear oscillators has been thoroughly explored …

Being motivated by the recent prediction of high-Q modes in subwavelength dielectric
resonators inspired by bound states in the continuum (BIC), we study the second-harmonic …