Brian Kasch

Tunable axial potentials for atom-chip waveguides

We present a method for generating precise magnetic potentials that can be described by a polynomial series along the axis of a cold atom waveguide near the surface of an atom chip. With a single chip design consisting of several wire pairs, various axial potentials can be created by varying the ratio of the currents in the wires, including double wells, triple wells, and pure harmonic traps with suppression of higher order terms. We use this method to design and fabricate a chip with modest experimental requirements. Finally, we use the chip to demonstrate a double well potential.

Two-dimensional grating magneto-optical trap

We demonstrate a two dimensional grating magneto-optical trap (2D GMOT) with a single input beam and a planar diffraction grating in

Ex vacuo atom chip Bose-Einstein condensate

^{87}

On the stability of atom chip interferometers

Rb. This configuration increases experimental access when compared with a traditional 2D MOT. As configured in the paper, the output flux is several hundred million rubidium atoms/s at a mean velocity of 19.0

Publisher's Note: Two-dimensional grating magneto-optical trap [Phys. Rev. A 96 , 033636 (2017)]

\pm~0.2

High-purity, robust alkali vapor sources without vacuum feedthroughs

m/s. The velocity distribution has a 3.3

Ex Vacuo Atom Chips

\pm~1.7

System and method for creating a predetermined magnetic potential

m/s standard deviation. We use the atomic beam from the 2D GMOT to demonstrate loading of a three dimensional grating MOT (3D GMOT) with

Rapid prototyping of versatile atom chips for atom interferometry applications.

2.02\times 10^8 \pm 3 \times 10^6

Tunable atom chip potentials for confined atomic sensors

atoms. Methods to improve flux output are discussed.