The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2025
Filed:
Aug. 14, 2020
The University of Chicago, Chicago, IL (US);
Tian Zhong, Chicago, IL (US);
Christina Wicker, Chicago, IL (US);
THE UNIVERSITY OF CHICAGO, Chicago, IL (US);
Abstract
Technologies for a strong rare-earth-ion interactions are disclosed. In the illustrative embodiment, a heterogeneous slot waveguide is formed with two layers of silicon surrounding a layer of Er:Y2O3, resulting in a waveguide that supports a TM mode with a strong confinement of electromagnetic field near the erbium dopants. The strong concentration of electromagnetic field and small mode volume allows for strong interactions between optical fields and the erbium dopants. In some embodiments, the slot waveguide structure may be configured as a microring resonator or a photonic crystal, resulting in small-mode-volume resonators with high Q-factors. In some embodiments, strong electro-optic and/or acousto-optic coupling may be achieved, resulting in quantum transducer able to coherently convert between signals in different systems.