Spontaneous parametric down-conversion was used to generate narrowband photon pairs with a high spectral brightness in a high-Q silicon nitride microresonator.

In their proof-of-concept device, consisting of an array of 20 tunable microresonators, the team demonstrated that each multiplexed microresonator produced high-quality entangled photon pairs as compa...

Using a chip-based dual microresonator-soliton source with a high-speed photodetector, the authors demonstrate a CMOS-compatible generator of tunable millimetre-wave signals with low phase noise.

Implemented on a Si₃N₄ microresonator, a multimodal locking architecture simultaneously stabilizes pump frequency, cavity resonance, and repetition rate, enabling robust and day-scale low-repetition-r...

A new optical microresonator chip keeps light circulating longer, enhancing efficiency for next-generation sensors and photonic devices.

Researchers at CU Boulder have developed highly efficient optical microresonators that could support a new generation of powerful sensor technologies. A microresonator is a microscopic structure designed to confine light in a small space. As light circulates inside, its intensity increases. When that intensity reaches a sufficient level, scientists can carry out specialized optical processes that enable sensing and other advanced functions.

Scientists enhance the sensitivity of miniature optical devices by preparing light in a special state, allowing them to detect incredibly faint signals previously hidden by inherent noise and pushing the limits of precision measurement.

**Abstract:** This paper introduces a novel approach to achieving strong coupling between quantum dots (QDs) and microresonators by integrating adaptive metamaterial resonator arrays. This design overcomes limitations of fixed resonator geometries by dynamically tuning resonator properties to optimize coupling strength and spectral overlap. We demonstrate, through rigorous electromagnetic simulations and analytical modeling, a 10x increase in coupling efficiency compared to traditional static resonator designs, paving the way for advanced quantum information processing and nanoscale photonics applications.

We begin by describing the photoinduced SHG in a Si 3 N 4 microresonator (Fig. 1b). When both the pump and its second-harmonic (SH) are doubly resonant, the initial weak light within the SH resonance seeds the CPE, and the...

An optical reservoir computer architecture is presented that leverages optical frequency comb formation from modulation instability inside a Kerr microresonator. The proposed solution can enable GHz s...