Recent years have witnessed significant progress in quantum communication and quantum
internet with the emerging quantum photonic chips, whose characteristics of scalability …

Recent developments in chip-based photonic quantum circuits have radically impacted
quantum information processing. However, it is challenging for monolithic photonic platforms …

Isolating single molecules in the solid state has allowed fundamental experiments in basic
and applied sciences. When cooled down to liquid helium temperature, certain molecules …

Rare‐earth (RE) ion doped crystalline materials have a wide spectrum of applications in
lasers, amplifiers, sensors, as well as classical and quantum information processing. The …

Packaging of photonic integrated circuit (PIC) chips is an essential and critical step before
they can be integrated into functional optoelectronic systems. Photonic packaging is …

Assisted by the rapid development of photonic integrated circuits, scalable and versatile chip-
based quantum light sources with nonlinear optics are increasingly tangible for real-world …

Inscribing functional micro-nano-structures in transparent dielectrics enables constructing all-
inorganic photonic devices with excellent integration, robustness, and durability, but remains …

Femtosecond (Fs) laser micro-/nano-fabrication technology allows direct definition of on-
demand nanostructures with three-dimensional (3D) geometric features and tailored …

Single-photon sources and their optical spin readout are at the core of applications in
quantum communication, quantum computation, and quantum sensing. Their integration in …

Quantum-enhanced sensing and metrology pave the way for promising routes to fulfil the
present day fundamental and technological demands for integrated chips which surpass the …