公开(公告)号：US20250060430A1

公开(公告)日：2025-02-20

申请号：US18721327

申请日：2022-12-19

Applicant: Element Six Technologies Limited

Inventor： Andrew Mark EDMONDS ,  Matthew Lee MARKHAM

IPC: G01R33/12 ,  C30B29/04

Abstract: A sensor assembly comprising single crystal diamond material, the single crystal diamond material comprising a surface which is configured in use to contact a fluid, the surface comprising a sensing surface region, wherein the single crystal diamond material comprises a plurality of quantum spin defects in proximity to the sensing surface region. The sensor assembly further comprises a first electrode and a second electrode. The electrodes are located such that, in use, they generate an electric field proximate to a surface of the sensing surface region, the electric field being sufficient to generate oxidising species in the fluid for removing contaminant material from the sensing surface region.

公开(公告)号：US20250010427A1

公开(公告)日：2025-01-09

申请号：US18710290

申请日：2022-11-14

Applicant: Element Six Technologies Limited

Inventor： Christopher John KELLY ,  David William JAMES

IPC: B24B49/04 ,  B24B9/16 ,  B24B49/12

Abstract: There is provided a method and apparatus for processing a diamond surface. The method comprises: i. locating a diamond material having a first surface and a second, opposite surface, in a holder, the holder located at the end of a positioning arm; ii. processing the first surface on a rotating wheel; iii. while the diamond material is in the holder, measuring an angle of the first surface relative to the second surface; iv. repeating steps (ii) and (iii) until a desired angle is achieved.

公开(公告)号：US11825286B2

公开(公告)日：2023-11-21

申请号：US17764742

申请日：2020-12-22

Applicant: ELEMENT SIX TECHNOLOGIES LIMITED

Inventor： Benjamin Wickham ,  Ian Friel

IPC: C23C16/27 ,  H04R7/12 ,  C23C16/01 ,  H04R31/00

CPC classification number: H04R7/127 ,  C23C16/01 ,  C23C16/271 ,  C23C16/272 ,  C23C16/274 ,  H04R31/003 ,  H04R2207/021 ,  H04R2307/023

Abstract: A non-planar chemical vapour deposition polycrystalline diamond body has a dome body having an apex and an outer periphery. The dome body has an average radius of curvature in a range of 4 mm to 25 mm and a maximum linear dimension at the outer periphery of the dome body of no more than 26 mm. The average radius of curvature is no less than 0.6 times the maximum linear dimension at the outer periphery. A method of fabricating the non-planar diamond body is also disclosed.

公开(公告)号：US11807955B2

公开(公告)日：2023-11-07

申请号：US16962860

申请日：2019-01-24

Applicant: ELEMENT SIX TECHNOLOGIES LIMITED

Inventor： Matthew Lee Markham ,  Andrew Mark Edmonds

IPC: C30B25/20 ,  C30B25/00 ,  B01L3/00 ,  C30B25/04 ,  C30B29/04 ,  G01N24/10 ,  G01R33/30 ,  G01R33/60 ,  B82Y10/00

CPC classification number: C30B25/00 ,  B01L3/502707 ,  C30B25/04 ,  C30B29/04 ,  G01N24/10 ,  G01R33/302 ,  G01R33/60 ,  B01L2300/0627 ,  B82Y10/00

Abstract: A synthetic diamond material comprises a surface, wherein the surface comprises a first surface region comprising a first concentration of quantum spin defects. A second surface region has a predetermined area and is located adjacent to the first surface region, the second region comprising a second concentration of quantum spin defects. The first concentration of quantum spin defects is at least ten times greater than the second concentration of quantum spin defects, and at least one of the first or second surface regions comprises chemical vapour deposition, CVD, synthetic diamond. A method of producing the synthetic diamond material is also disclosed.

公开(公告)号：US20230067863A1

公开(公告)日：2023-03-02

申请号：US17758347

申请日：2021-02-03

Applicant: Element Six Technologies Limited

Inventor： Andrew Michael Bennett ,  Frederick Richard Faulkner

IPC: G02B1/02 ,  G02B3/08

Abstract: A diamond lens (3) configured for use in a multispectral imaging system (1). The diamond lens (3) has a largest linear dimension of at least 10 mm and is formed from diamond material having a birefringence An of greater than 1×10−4, measured over a specified area of at least 4 mm by 4 mm through a maximum thickness of at least 400 μm. A multispectral imaging system (1) comprising the diamond lens (3) and a component (2) comprising the diamond lens are also described.

公开(公告)号：US20230053780A1

公开(公告)日：2023-02-23

申请号：US17759173

申请日：2021-03-04

Applicant: Element Six Technologies Limited ,  University of Warwick

Inventor： Joshua James Tully ,  Samuel James Cobb ,  Julie Victoria MacPherson ,  Mark Edward Newton ,  Matthew Lee Markham

IPC: C25F3/12 ,  C30B29/04 ,  C30B33/10 ,  C23C14/06 ,  C23C14/48 ,  C25F3/14 ,  C01B32/25 ,  C01B32/28

Abstract: A method for forming a diamond product. Diamond material is provided and a damage layer comprising sp2 bonded carbon is formed in the material. The presence of the damage layer defines a first diamond layer above and in contact with the damage layer and a second diamond layer below and in contact with the damage layer. The damage layer is electrochemically etched to separate it from the first layer, wherein the electrochemical etching is performed in a solution containing ions, the solution having an electrical conductivity of at least 500 μS cm−1, and wherein the ions are capable of forming radicals during electrolysis. The diamond product is also described.

公开(公告)号：US11555948B2

公开(公告)日：2023-01-17

申请号：US16464376

申请日：2017-12-12

Applicant: ELEMENT SIX TECHNOLOGIES LIMITED

Inventor： Alexander Clark Muhr

IPC: G02B1/118 ,  C30B29/04 ,  G02B1/02 ,  H01S3/00

Abstract: An optical element comprising a window formed of synthetic diamond material and an optical surface pattern formed directly in a surface of the synthetic diamond material. The window of synthetic diamond material is in the form of a wedged diamond window with non-parallel major surfaces defining a wedge angle in a range (1) arcminute to 10° and the optical surface pattern is formed directly in one or both of the non-parallel major surfaces. There is also described a laser system comprising the optical element and a laser having a coherence length, wherein the coherence length of the laser is greater than twice a thickness of the wedged diamond window at its thickest point.

公开(公告)号：US20220181647A1

公开(公告)日：2022-06-09

申请号：US17603337

申请日：2020-04-06

Applicant: ELEMENT SIX TECHNOLOGIES LIMITED ,  UNIVERSITY OF WARWICK

Inventor： GEORGIA WOOD ,  TIMOTHY PETER MOLLART ,  JULIE VICTORIA MACPHERSON

IPC: H01M4/96 ,  C25B11/043 ,  G01N27/30 ,  H01M4/86 ,  C01B32/28 ,  B01J3/06

Abstract: An electrode comprising synthetic high-pressure high-temperature diamond material, the diamond material comprising a substitutional boron concentration of between 1×1020 and 5×1021 atoms/cm3 and a nitrogen concentration of no more than 1019 atoms/cm3. The electrode has a ΔE3/4-1/4 as measured with respect to a saturated calomel reference electrode in an aqueous solution containing 0.1 M KNO3 and 1 mM of Ru(NH3)63+ selected any of less than 70 mV, less than 68 mV, less than 66 mV, and less than 64 mV, and/or a peak to peak separation ΔEp as measured with respect to a saturated calomel reference electrode in an aqueous solution containing 0.1 M KNO3 and 1 mM of Ru(NH3)63+ selected any of less than 70 mV, less than 68 mV, less than 66 mV, and less than 64 mV.

公开(公告)号：US20220154366A1

公开(公告)日：2022-05-19

申请号：US17593200

申请日：2020-03-30

Applicant: ELEMENT SIX TECHNOLOGIES LIMITED

Inventor： ANDREW MARK EDMONDS ,  MATTHEW LEE MARKHAM ,  PIERRE-OLIVIER FRANCOIS MARC COLARD

IPC: C30B25/20 ,  C30B29/04 ,  C30B25/16

Abstract: Single crystal CVD diamond material comprising a total nitrogen concentration of at least 5 ppm and a neutral single substitutional nitrogen. Ns0, to total single substitutional nitrogen, Ns, ratio of at least 0.7. Such a diamond is observed to have a relatively low amount of brown colouration despite the relatively high concentration of nitrogen A method of making the single crystal diamond is also disclosed, the method including growing the CVD diamond in process gases comprising 60 to 200 ppm nitrogen, in addition to a carbon-containing gas, and hydrogen, wherein the ratio of carbon atoms in the carbon-containing gas to hydrogen atoms in the hydrogen gas is 0.5 to 1.5%.

公开(公告)号：US20210395916A1

公开(公告)日：2021-12-23

申请号：US17408166

申请日：2021-08-20

Applicant: ELEMENT SIX TECHNOLOGIES LIMITED

Inventor： RIZWAN KHAN ,  STEVEN COE ,  JONATHAN WILMAN (DECEASED) ,  DANIEL TWITCHEN ,  GEOFFREY SCARSBROOK ,  JOHN BRANDON ,  CHRISTOPHER WORT ,  MATTHEW MARKHAM ,  IAN FRIEL ,  KATHARINE ROBERTSON

IPC: C30B25/10 ,  C23C16/27 ,  C30B29/04 ,  C23C16/511

Abstract: A method of fabricating synthetic diamond material using a microwave plasma activated chemical vapour deposition technique is provided which utilizes high and uniform microwave power densities applied over large areas and for extended periods of time. Products fabricated using such a synthesis technique are described including a single crystal CVD diamond layer which has a large area and a low nitrogen concentration, and a high purity, fast growth rate single crystal CVD diamond material.