Optical atomic clock on a chip

Optical atomic clocks are the most precise time-keeping devices in existence, with applications ranging from fundamental physics to navigation and telecommunications. However, miniaturizing optical atomic clocks can unlock a wide range of applications where conventional systems are impractical due to their size and cost. Furthermore, optical atomic clocks are highly sophisticated by nature, so integrating them on a chip presents numerous challenges. Solving these challenges will not only enable compact and cost-effective timekeeping solutions, but also drive innovation on the photonic platform, with potential impact extending well beyond the clocks themselves.

This PhD project aims to develop a chip-scale optical atomic clock, leveraging imec’s new silicon nitride based platform for integrated photonics. Focus will be on the design, modeling, and realization of the key components required to build a chip-scale optical atomic clock. The candidate may join ongoing work on the integration of doped insulator waveguides for on-chip optical gain; the integration of thin-film, partially poled lithium niobate for wavelength conversion and frequency stabilization; and the integration of atomic vapor cells and related components. The candidate will contribute to the practical implementation of one or more of these clockwork components, ensuring compatibility with imec’s silicon nitride platform.

This PhD offers a unique opportunity to work at the forefront of photonic integration technologies. The candidate will be part of a vibrant research ecosystem at imec, with access to world-class facilities and mentorship from leading scientists and engineers. The candidate will work in close collaboration with academic and industry experts in nonlinear optics, photonic circuit design, and fabrication, contributing to the development of a novel and scalable architecture for optical atomic clocks.

Candidate Profile

We are looking for a proactive PhD candidate who seeks challenges in both theoretical and experimental domains. The ideal candidate has:

• Knowledge of integrated photonics, laser theory, and nonlinear optics
• Strong analytical and modelling skills
• Hands-on experience with photonic design tools and/or cleanroom fabrication is a plus