Epitaxial quantum dots formed by III–V compound semiconductors are excellent sources of
non-classical photons, creating single photons and entangled multi-photon states on …

Abstract Second-order (χ (2)) optical nonlinearity is one of the most common mechanisms for
modulating and generating coherent light in photonic devices. Due to strong photon …

The pursuit of compact lasers with low thresholds has imposed strict requirements on tight
light confinements with minimized radiation losses. Bound states in the continuum (BICs) …

Solitons in microresonators have spurred intriguing nonlinear optical physics and photonic
applications. Here, by combining Kerr and Brillouin nonlinearities in an over-modal …

Soliton frequency combs generated in microresonators offer powerful tools for optical
metrology, due to the high time‐frequency resolution. Here, via exciting the intracavity …

Liquid-crystal microcavity lasers have attracted considerable attention because of their
extraordinary tunability and sensitive response to external stimuli, and because they operate …

The emerging hybrid integrated quantum photonics combines the advantages of different
functional components into a single chip to meet the stringent requirements for quantum …

Optical microcavities offer a promising platform for highly efficient light–matter interactions.
Recently, the combination of microresonators and 2D materials in the nanoscale has further …

Optical frequency combs provide a powerful tool for precise measurement of the optical
frequency, holding significant importance in fields such as spectroscopy, optical …

In this paper, we demonstrate efficient spontaneous quasi-phase matched (SQPM) second
harmonic generation (SHG) in a micro-racetrack resonator on X-cut thin film lithium niobate …