Many breakthroughs in technologies are closely associated with the deep understanding
and development of new material platforms. As the main material used in microelectronics …

We propose an all-optical approach to achieve optical nonreciprocity on a chip by quantum
squeezing one of two coupled resonator modes. By parametric pumping a χ (2)-nonlinear …

Quantum sensors such as spin defects in diamond have achieved excellent performance by
combining high sensitivity with spatial resolution. Unfortunately, these sensors can only …

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 …

While the squeezing of a propagating field can, in principle, be made arbitrarily strong, the
cavity-field squeezing is subject to the well-known 3 dB limit, and thus has limited …

The magneto-optical trap (MOT) is an essential tool for collecting and preparing cold atoms
with a wide range of applications. We demonstrate a planar-integrated MOT by combining …

The conversion and interaction between quantum signals at the single-photon level are
essential for scalable quantum photonic information technology. Using a fully optimized …

We investigate nonreciprocal photon correlations in coupled microring resonators with
directional quantum squeezing (quantum parametric amplification). We show that the …

Thin‐film lithium niobate (TFLN) is superior for integrated nanophotonics due to its
outstanding properties in nearly all aspects: strong second‐order nonlinearity, fast and …

With the advancement of modulation technology and the requirement for device
miniaturization and integration, lithium niobate on insulator (LNOI) can be a versatile …