Atom-optical elements on micro chips

TL;DR

This paper demonstrates the creation of integrated atom-optical elements such as waveguides, beam splitters, and traps on a microchip, enabling complex atom-optical circuits with minimal surface effects.

Contribution

It introduces a novel microchip fabrication method for atom-optical components, integrating multiple elements on a single chip for advanced quantum control.

Findings

Successful fabrication of gold conductors on aluminium-oxide substrate

Generation of waveguides at large distances from the chip surface

Integration of multiple atom-optical elements on one chip

Abstract

We describe the realization of atom-optical elements as magnetic waveguide potentials, beam splitters and gravitational traps on a microchip. The microchip was produced by electroplating gold conductors on an aluminium-oxide substrate. The conductors are 30-150 $\mu$m wide and allow for the generation of waveguides at large distances to the chip surface, where surface effects are negligible. We show that these elements can be integrated on a single chip to achieve complex atom-optical circuits.