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1. WO2021046067 - FLEXIBLE ALUMINA CERAMIC WAVEGUIDES FOR TERAHERTZ APPLICATIONS

Publication Number WO/2021/046067
Publication Date 11.03.2021
International Application No. PCT/US2020/048971
International Filing Date 02.09.2020
IPC
G02B 6/10 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
10of the optical waveguide type
C04B 35/10 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
10based on aluminium oxide
C04B 41/00 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
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
C04B 41/48 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
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
45Coating or impregnating
46with organic materials
48Macromolecular compounds
C04B 41/91 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
41After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
80of only ceramics
91involving the removal of part of the materials of the treated articles, e.g. etching
G02B 6/122 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
10of the optical waveguide type
12of the integrated circuit kind
122Basic optical elements, e.g. light-guiding paths
CPC
C04B 2235/5224
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
52Constituents or additives characterised by their shapes
5208Fibers
5216Inorganic
522Oxidic
5224Alumina or aluminates
C04B 2235/526
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
52Constituents or additives characterised by their shapes
5208Fibers
526characterised by the length of the fibers
C04B 2235/5264
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
02Composition of constituents of the starting material or of secondary phases of the final product
50Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
52Constituents or additives characterised by their shapes
5208Fibers
5264characterised by the diameter of the fibers
C04B 2235/72
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
70Aspects relating to sintered or melt-casted ceramic products
72Products characterised by the absence or the low content of specific components, e.g. alkali metal free alumina ceramics
C04B 2235/786
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04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
70Aspects relating to sintered or melt-casted ceramic products
74Physical characteristics
78Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
786Micrometer sized grains, i.e. from 1 to 100 micron
C04B 35/111
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
35Shaped ceramic products characterised by their composition
01based on oxide ceramics
10based on aluminium oxide
111Fine ceramics
Applicants
  • CORNING INCORPORATED [US]/[US]
Inventors
  • BADDING, Michael Edward
  • LI, Ming-Jun
  • MEHROTRA, Karan
  • ZHUANG, Cheng-Gang
Agents
  • MAGAZINER, Russell S.
Priority Data
62/895,20903.09.2019US
62/895,22303.09.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FLEXIBLE ALUMINA CERAMIC WAVEGUIDES FOR TERAHERTZ APPLICATIONS
(FR) GUIDES D'ONDES EN CÉRAMIQUE D'ALUMINE SOUPLE POUR APPLICATIONS TÉRAHERTZ
Abstract
(EN)
The THz waveguides disclosed herein are used to transmit signals having a THz frequency in the range from.1 THz to 10 THz and include an alumina core surrounded by an optional cladding. The core may have a diameter (D1) in the range from 10 µm to 500 µm and may be comprised of a ceramic ribbon having a dielectric constant (Dk). The optional cladding may have a dielectric constant (Dk) less than the core. The THz waveguides can be formed using a continuous firing process and nano-perforation technology that enables access to a wide form factor range. In one example, rectangular waveguides, or ribbons, may be fabricated in the 10 µm to 200 µm thick range at widths in the range from sub-millimeters to several meters and lengths in the range from millimeters to several hundred meters.
(FR)
L'invention concerne des guides d'ondes THz qui sont utilisés pour transmettre des signaux présentant une fréquence THz dans la plage variant de 0,1 THz à 10 THz et qui comprennent une âme d'alumine entourée par une gaine facultative. L'âme peut avoir un diamètre (D1) dans la plage de 10 µm à 500 µm et peut être constituée d'un ruban de céramique ayant une constante diélectrique (Dk). La gaine facultative peut avoir une constante diélectrique (Dk) inférieure à celle de l'âme. Les guides d'ondes THz peuvent être formés à l'aide d'un procédé de cuisson continue et d'une technologie de nanoperforation qui permet un accès à une large plage de facteurs de forme. Selon un exemple, des guides d'ondes rectangulaires, ou des rubans, peuvent être fabriqué dans la plage d'épaisseur de 10 µm à 200 µm à des largeurs dans la plage allant de grandeurs sous-millimétriques jusqu'à plusieurs mètres et à des longueurs dans la plage allant de millimètres à plusieurs centaines de mètres.
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