Suspended waveguides on membrane and needle structures towards photonic atom trap integrated platforms
| DWPI Title: Photonic atom trap integrated platform for e.g. gyroscopes for facilitating trapping of atoms near surface of waveguide by evanescent-field optical trap in e.g. quantum computing, has suspended optical waveguide core formed on membrane such that core extends across opening between support structures |
| Abstract: An atom trap integrated platform (ATIP) comprises a substrate, a membrane, and a suspended waveguide. The substrate has an opening formed therein. The membrane extends across a portion of the substrate opening. The suspended waveguide is formed on the membrane such that the suspended waveguide extends from a first edge of the substrate to a second edge. A magneto-optical trap (MOT) is formed around the suspended waveguide by emitting a plurality of cooling beams and a repump through the substrate opening. Evanescent fields are established above the suspended waveguide by coupling two trapping beams through the suspended waveguide, which trapping beams are red-detuned and blue-detuned with respect to the resonant optical transition of the atoms. By forming the MOT within the evanescent fields, an evanescent field optical trap (EFOT) is formed. |
| Use: Photonic atom trap integrated platform for guided atom interferometry accelerometers or gyroscopes for facilitating trapping of atoms near a surface of a waveguide by evanescent-field optical trap in quantum computing, quantum communication and networks, and quantum sensing including a control system, a laser system, and a magnetic field system. |
| Advantage: The platform has high optical power delivery at a suspended region of an optical waveguide in vacuum and efficient atom loading into waveguide atom traps. |
| Novelty: The platform has a substrate (800) that comprises an opening, where the substrate comprises first and second needle support structures, and the first and second needle support structures extend into the opening of the substrate. A membrane extends between the first and second needle support structures. A suspended optical waveguide core is formed on the membrane such that the suspended optical waveguide core extends across the substrate opening between the first and second needle support structures, where the suspended optical waveguide core is adapted to propagate an optical signal along length of the suspended optical waveguide core. |
| Filed: 12/9/2021 |
| Application Number: US17546302A |
| Tech ID: SD 15238.1 |
| 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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