High Quality factor micro-ring resonator for strong atom-light interactions using miniature atomic beams

Abstract

An integrated photonic platform is proposed for strong interactions between atomic beams and annealing-free high-quality-factor (Q) microresonators. We fabricated a thin-film, air-clad SiN microresonator with a loaded Q of $1.55\times 10^6$ around the optical transition of ${}^{87}$Rb at $780$ nm. This Q is achieved without annealing the devices at high temperatures, enabling future fully integrated platforms containing optoelectronic circuitry as well. The estimated single-photon Rabi frequency (2g) is $2\mathbf{\pi }\times$64 MHz at a height of 100 nm above the resonator. Our simulation result indicates that miniature atomic beams with a longitudinal speed of 0.2 m/s to 30 m/s will strongly interact with our resonator, allowing for the detection of single-atom transits and the realization of scalable single-atom photonic devices. Racetrack resonators with a similar Q can be used to detect thermal atomic beams with velocities around 300 m/s.

References in corpus (10)

• Double-slit photoelectron interference in strong-field ionization of the neon dimer
• Cavity-based quantum networks with single atoms and optical photons
• Controlling the Spontaneous Emission Rate of Single Quantum Dots in a 2D Photonic Crystal
• Breaking the Loss Limitation of On-chip High-confinement Resonators
• All-Optical Routing of Single Photons by a One-Atom Switch Controlled by a Single Photon
• Fiber-optical switch controlled by a single atom
• Visible nonlinear photonics via high-order-mode dispersion engineering
• Clocked Atom Delivery to a Photonic Crystal Waveguide
• Microring resonators on a membrane optical circuit for atom-light interactions
• Cavity QED Based on Thermal Atoms Interacting with a Photonic Crystal Cavity: A Feasibility Study

Cited by in corpus (1)

• Collimated versatile atomic beam source with alkali dispensers