A microfabricated surface ion trap on a high-finesse optical mirror

TL;DR

This paper presents a microfabricated surface ion trap integrated with a high-finesse optical mirror, enabling efficient light collection and imaging of trapped ions with minimal optical losses, advancing quantum optics integration.

Contribution

It introduces a novel microfabrication technique for integrating a dielectric mirror with a surface ion trap, reducing optical losses and enabling direct ion imaging.

Findings

Optical losses as low as 80 ppm at 422 nm.

Successful light collection and imaging of a single Sr+ ion.

Demonstration of integrated optics in ion trap technology.

Abstract

A novel approach to optics integration in ion traps is demonstrated based on a surface electrode ion trap that is microfabricated on top of a dielectric mirror. Additional optical losses due to fabrication are found to be as low as 80 ppm for light at 422 nm. The integrated mirror is used to demonstrate light collection from, and imaging of, a single 88 Sr+ ion trapped $169\pm4 \mu$m above the mirror.