Integration of fluorescence collection optics with a microfabricated surface electrode ion trap

TL;DR

This paper demonstrates an integrated optical system with micro-optics and fiber arrays embedded in an ion trap chip, enabling efficient fluorescence collection without affecting trapping performance.

Contribution

The work introduces a novel integrated optical system for ion traps that combines micro-optics and fiber arrays directly into the trapping chip, maintaining performance.

Findings

Successful fluorescence collection from trapped ions using integrated optics

No impact on ion trapping and shuttling behavior

Compatible with existing trapping control voltages

Abstract

We have successfully demonstrated an integrated optical system for collecting the fluorescence from a trapped ion. The system, consisting of an array of transmissive, dielectric micro-optics and an optical fiber array, has been intimately incorporated into the ion-trapping chip without negatively impacting trapping performance. Epoxies, vacuum feedthrough, and optical component materials were carefully chosen so that they did not degrade the vacuum environment, and we have demonstrated light detection as well as ion trapping and shuttling behavior comparable to trapping chips without integrated optics, with no modification to the control voltages of the trapping chip.