Daniel W. Youngner

A Manufacturable Chip-Scale Atomic Clock

Several factors are converging to enable atomic clocks to be manufactured with very small dimensions and run at low operating power. MOEMS technology, high-speed vcsels, microelectronics, wafer-scale packaging, and the all-optical CPT method of exciting atomic transitions are key ingredients in the quest to make precision time-keeping devices with chip-scale dimensions. In this paper we report on the design and process that enable an atomic clock to be made with a total volume of 1.7 cm3, a total power budget of 57 mWatts, and an Allan Deviation at 1 hour of 5E-12.

Ball-grid array architecture for microfabricated ion traps

State-of-the-art microfabricated ion traps for quantum information research are approaching nearly one hundred control electrodes. We report here on the development and testing of a new architecture for microfabricated ion traps, built around ball-grid array (BGA) connections, that is suitable for increasingly complex trap designs. In the BGA trap, through-substrate vias bring electrical signals from the back side of the trap die to the surface trap structure on the top side. Gold-ball bump bonds connect the back side of the trap die to an interposer for signal routing from the carrier. Trench capacitors fabricated into the trap die replace area-intensive surface or edge capacitors. Wirebonds in the BGA architecture are moved to the interposer. These last two features allow the trap die to be reduced to only the area required to produce trapping fields. The smaller trap dimensions allow tight focusing of an addressing laser beam for fast single-qubit rotations. Performance of the BGA trap as characterized with

Monolithic bi-directional microvalve with enclosed drive electric field

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MEMS microthruster array

Ca

Micro electro-mechanical systems relay

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Cold atom micro primary standard

ions is comparable to previous surface-electrode traps in terms of ion heating rate, mode frequency stability, and storage lifetime. We demonstrate two-qubit entanglement operations with

The Polychromator: A programmable MEMS diffraction grating for synthetic spectra

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MEMS Mega-pixel Micro-thruster Arrays for Small Satellite Stationkeeping

Yb

High temperature resonant integrated microstructure sensor

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Fixture for backside wafer etching

ions in a second BGA trap.