Completed ion trap with optics integrated.
Detail of fiber/chip assembly in chamber.
The efficient collection of fluorescence photons from a single ion is an essential ingredient for trapped ion-based quantum information processing.
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.
Considerations such as our choice of epoxies, vacuum feedthrough, and optical component materials did not degrade the vacuum environment, and we have demonstrated light detection as well as ion trapping and shuttling behavior similar to trapping chips without integrated optics, with no modification to the control voltages of the trapping chip.
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