Trapped ion platform with optical input and output
| DWPI Title: Apparatus for operating optically controlled atomic clock apparatus, has active semiconductor photodetectors that are integrated on substrate below trapping sites and receivingly optically coupled to trapping sites for detecting light |
| Abstract: In disclosed apparatus, a plurality of optical waveguides monolithically integrated on a surface ion trap substrate deliver light to the trapping sites. Electrical routing traces defined in one or more metallization levels deliver electrical signals to electrodes of the surface electrode ion trap. A plurality of photodetectors are integrated on the substrate and arranged to detect light from respective trapping sites. |
| Use: Apparatus for operating optically controlled atomic clock apparatus used in mass spectrometry. |
| Advantage: The apparatus can hold large numbers of ions simultaneously in individual trapping sites. It lends itself to statistical averaging techniques that can be used to enhance the accuracy of an optically controlled atomic clock. It may be possible to miniaturize it enough to make it portable. |
| Novelty: The operating apparatus has a surface electrode ion trap (800) fabricated on a substrate and conformed to provide a set of trapping sites for ionic host systems. A set of optical waveguides is monolithically integrated on the substrate, and configured to deliver light to the trapping sites. Electrical routing traces are defined in metallization levels and integrated on substrate and configured to deliver electrical signals to electrodes of the surface electrode. Several active semiconductor photodetectors e.g. single-photon avalanche detectors (SPADs), are integrated below the trapping sites and optically coupled to the respective trapping sites for detecting light from the trapping sites. |
| Filed: 9/24/2020 |
| Application Number: US17030889A |
| Tech ID: SD 14919.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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