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 …

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 …

On-chip optical nonreciprocal devices are vital components for integrated photonic systems
and scalable quantum information processing. Nonlinear optical isolators and circulators …

Nonlinear optics is a branch of optics that explains the nonlinear response of atoms and
molecules to a field of light radiation. There is a difficulty in cutting crystals in shapes …