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1. WO2020068435 - RARE-EARTH DOPED METAL OXIDE CERAMIC WAVEGUIDE QUANTUM MEMORIES AND METHODS OF MANUFACTURING THE SAME

Publication Number WO/2020/068435
Publication Date 02.04.2020
International Application No. PCT/US2019/050730
International Filing Date 12.09.2019
IPC
G11C 13/04 2006.01
GPHYSICS
11INFORMATION STORAGE
CSTATIC STORES
13Digital stores characterised by the use of storage elements not covered by groups G11C11/, G11C23/, or G11C25/173
04using optical elements
C04B 35/486 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01based on oxides
48based on zirconium or hafnium oxides or zirconates or hafnates
486Fine ceramics
CPC
B32B 18/00
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
18Layered products essentially comprising ceramics, e.g. refractory products
C01F 17/218
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
17Compounds of rare earth metals
20Compounds containing only rare earth metals as the metal element
206oxide or hydroxide being the only anion
218Yttrium oxides or hydroxides
C01G 25/02
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
25Compounds of zirconium
02Oxides
C01G 27/02
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
27Compounds of hafnium
02Oxides
C01P 2002/52
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2002Crystal-structural characteristics
50Solid solutions
52containing elements as dopants
C01P 2002/72
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2002Crystal-structural characteristics
70defined by measured X-ray, neutron or electron diffraction data
72by d-values or two theta-values, e.g. as X-ray diagram
Applicants
  • CORNING INCORPORATED [US]/[US]
Inventors
  • AITKEN, Bruce Gardiner
  • GARNER, Sean Matthew
  • KETCHAM, Thomas Dale
  • NOLAN, Daniel Aloysius
  • YANG, Jun
  • ZHANG, Haitao
Agents
  • SHORT, Svetlana Z.
Priority Data
62/735,40024.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) RARE-EARTH DOPED METAL OXIDE CERAMIC WAVEGUIDE QUANTUM MEMORIES AND METHODS OF MANUFACTURING THE SAME
(FR) MÉMOIRES QUANTIQUES DE GUIDE D'ONDES EN CÉRAMIQUE À OXYDE MÉTALLIQUE DOPÉ AUX TERRES RARES ET LEURS PROCÉDÉS DE FABRICATION
Abstract
(EN)
A ceramic waveguide includes: a doped metal oxide ceramic core layer; and at least one cladding layer comprising the metal oxide surrounding the core layer, such that the core layer includes an erbium dopant and at least one rare earth metal dopant being: lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, thulium, ytterbium, lutetium, scandium, or oxides thereof, or at least one non-rare earth metal dopant comprising zirconium or oxides thereof. Also included is a quantum memory including: at least one doped polycrystalline ceramic optical device with the ceramic waveguide and a method of fabricating the ceramic waveguide.
(FR)
L'invention concerne un guide d'ondes en céramique qui comprend : une couche centrale en céramique d'oxyde métallique dopé ; et au moins une couche de gainage comprenant l'oxyde métallique entourant la couche centrale, de sorte que la couche centrale comprenne un dopant à l'erbium et au moins un dopant de métal des terres rares étant : le lanthane, le praséodyme, le néodyme, le prométhium, le samarium, l'europium, le gadolinium, le terbium, le dysprosium, l'holmium, le thulium, l'ytterbium, le lutécium, le scandium, ou des oxydes de ceux-ci, ou au moins un dopant de métal n'appartenant pas aux terres rares comprenant du zirconium ou des oxydes de celui-ci. L'invention concerne également une mémoire quantique comprenant : au moins un dispositif optique en céramique polycristalline dopée avec le guide d'ondes en céramique et un procédé de fabrication du guide d'ondes en céramique.
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