Fast, high efficiency and low error single-photon sources are required for the implementation
of a number of quantum information processing applications. The fastest triggered single …

Photonic integrated circuits with second-order (χ (2)) nonlinearities are rapidly scaling to
remarkably low powers. At this time, state-of-the-art devices achieve saturated nonlinear …

The absence of the single-photon nonlinearity has been a major roadblock in develo**
quantum photonic circuits at optical frequencies. In this paper, we demonstrate a periodically …

The light sources that power photonic networks are small and scalable, but they also require
the incorporation of optical isolators that allow light to pass in one direction only, protecting …

Photonic nanostructures simultaneously maximizing spectral and spatial overlap between
fundamental and second-harmonic confined modes are highly desirable for enhancing …

We show that relatively simple integrated photonic circuits have the potential to realize a
high fidelity deterministic controlled-phase gate between photonic qubits using bulk optical …

Second-harmonic generation in nonlinear materials can be greatly enhanced by realizing
doubly resonant cavities with high quality factors. However, fulfilling such doubly resonant …

The quality factor, Q, of photonic resonators permeates most figures of merit in applications
that rely on cavity-enhanced light–matter interaction such as all-optical information …

The realization of deterministic photon–photon gates is a central goal in optical quantum
computation and engineering. A longstanding challenge is that optical nonlinearities in …

We propose the use of nanostructured photonic nanocavities made of χ (2) nonlinear
materials as prospective passive devices to generate strongly sub-Poissonian light via …