Back to Search
Start Over
Rydberg Excitons in Synthetic Cuprous Oxide (Cu$_2$O)
- Source :
- Phys. Rev. Materials 5, 084602 (2021)
- Publication Year :
- 2020
-
Abstract
- High-lying Rydberg states of Mott-Wannier excitons are receiving considerable interest due to the possibility of adding long-range interactions to the physics of exciton-polaritons. Here, we study Rydberg excitation in bulk synthetic cuprous oxide grown by the optical float zone technique and compare the result with natural samples. X-ray characterization confirms both materials are mostly single crystal, and mid-infrared transmission spectroscopy revealed little difference between synthetic and natural material. The synthetic samples show principal quantum numbers up to $n=10$, exhibit additional absorption lines, plus enhanced spatial broadening and spatial inhomogeneity. Room temperature and cryogenic photoluminescence measurements reveal a significant excess of copper vacancies in the synthetic material. These measurements provide a route towards achieving \mbox{high-$n$} excitons in synthetic crystals, opening a route to scalable quantum devices.<br />Comment: 10 pages, 8 figures, submitted to Phys. Rev. Materials
- Subjects :
- Condensed Matter - Materials Science
Physics - Atomic Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Materials 5, 084602 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2010.11117
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevMaterials.5.084602