Atomic Source of Single Photons in the Telecom Band
| Autor: | Alan Dibos, Jeff D. Thompson, Christopher M. Phenicie, Mouktik Raha |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Quantum network
Materials science Optical fiber Photon Electromagnetic spectrum business.industry Nanophotonics Physics::Optics General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Quantum logic law.invention Ion law 0103 physical sciences 010306 general physics 0210 nano-technology Telecommunications business Quantum |
| Zdroj: | Physical review letters. 120(24) |
| ISSN: | 1079-7114 |
| Popis: | Single atoms and atomlike defects in solids are ideal quantum light sources and memories for quantum networks. However, most atomic transitions are in the ultraviolet-visible portion of the electromagnetic spectrum, where propagation losses in optical fibers are prohibitively large. Here, we observe for the first time the emission of single photons from a single Er^{3+} ion in a solid-state host, whose optical transition at 1.5 μm is in the telecom band, allowing for low-loss propagation in optical fiber. This is enabled by integrating Er^{3+} ions with silicon nanophotonic structures, which results in an enhancement of the photon emission rate by a factor of more than 650. Dozens of distinct ions can be addressed in a single device, and the splitting of the lines in a magnetic field confirms that the optical transitions are coupled to the electronic spin of the Er^{3+} ions. These results are a significant step towards long-distance quantum networks and deterministic quantum logic for photons based on a scalable silicon nanophotonics architecture. |
| Databáze: | OpenAIRE |
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