Room-temperature addressing of single rare-earth atoms in optical fiber

Rare-earth (RE) atoms in solid-state materials are attractive components for photonic quantum information systems because of their coherence properties even in high-temperature environments. We have experimentally performed the single-site optical spectroscopy and optical addressing of a single RE a...

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Bibliographic Details
Published in:arXiv.org 2023-10
Main Authors: Takezawa, Mikio, Suzuki, Ryota, Takahashi, Junichi, Shimizu, Kaito, Naruki, Ayumu, Katsumata, Kazutaka, Nemoto, Kae, Sadgrove, Mark, Sanaka, Kaoru
Format: Article
Language:English
Subjects:
Autocorrelation functions
Doped fibers
High temperature environments
Information systems
Optical communication
Optical fibers
Quantum phenomena
Rare earth elements
Room temperature
Solid state
Spectroscopy
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Summary:Rare-earth (RE) atoms in solid-state materials are attractive components for photonic quantum information systems because of their coherence properties even in high-temperature environments. We have experimentally performed the single-site optical spectroscopy and optical addressing of a single RE atom in an amorphous silica optical fiber at room temperature. The single-site optical spectroscopy of the tapered RE-doped fiber shows nonresonant emission lines similar to those seen in the case of an unstructured fiber and the autocorrelation function of photons emitted from the fiber shows the antibunching effect due to the spatial isolation given by the tapered fiber structure. The ability to address single RE atoms at room temperature provides a very stable and cost-effective technical platform for the realization of a solid-state system for a large-scale quantum optical network and other quantum technologies based on a large number of spectral channels from visible to midinfrared wavelengths.
ISSN:2331-8422
DOI:10.48550/arxiv.2310.10974