Design, fabrication and characterization of a micro-fabricated stacked-wafer segmented ion trap with two X-junctions

We describe the implementation of a three-dimensional Paul ion trap fabricated from a stack of precision-machined silica glass wafers, which incorporates a pair of junctions for two-dimensional ion transport. The trap has 142 dedicated electrodes which can be used to definemultiple potential wells in which strings of ions can be held. By supplying time-varying potentials, this also allows for transport and re-configuration of ion strings. We describe the design, simulation, fabrication and packaging of the trap, including explorations of different parameter regimes and possible optimizations and design choices. We give results of initial testing of the trap, including measurements of heating rates and junction transport.

Automated summary

This paper describes the implementation of a three-dimensional Paul ion trap with 142 dedicated electrodes for defining multiple potential wells and holding ion strings. Time-varying potentials allow for transport and re-configuration of ion strings, and initial testing includes measurements of heating rates and junction transport.